Using Multiple Combo Boxes as Criteria for Query

E

Eka1618

Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
 
E

Eka1618

I think we could disregard this post, I believe I figured out how to make
this work using some iif statements in my select statement.

Thanks anyway!
 
K

Ken Sheridan

Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

Eka1618 said:
Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
 
E

Eka1618

Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

Ken Sheridan said:
Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

Eka1618 said:
Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
Click to expand...
 
E

Eka1618

Now that I think about it, I think I still may need to track the lock by the
L_ID...

If I say where L_ID in (Select L_ID where .....) then I will get each L_ID
where L_PART_NO = this and/or L_MAT_Heat = that. Then the out put would be
each result using a L_ID listed in the query's results.

Maybe I just solved it myself, we'll see...lol









Eka1618 said:
Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

Ken Sheridan said:
Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

Eka1618 said:
Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
Click to expand...
Click to expand...
 
K

Ken Sheridan

Erica:

Let's hope so, but if you do need any further help post back.

Ken Sheridan
Stafford, England

Eka1618 said:
Now that I think about it, I think I still may need to track the lock by the
L_ID...

If I say where L_ID in (Select L_ID where .....) then I will get each L_ID
where L_PART_NO = this and/or L_MAT_Heat = that. Then the out put would be
each result using a L_ID listed in the query's results.

Maybe I just solved it myself, we'll see...lol









Eka1618 said:
Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

Ken Sheridan said:
Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

:

Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
Click to expand...
Click to expand...
 
E

Eka1618

Hi Ken,

I have the query working like it should. But now I am getting results as if
I used the word "LIKE" as I had initially. I changed it a while ago and it is
still acting as if I have it in there. Here is my updated version of the
query:


SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE ((tblResults.L_ID)
In (select L_ID from tblLock
Where (L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]' OR
[forms].[frmCustomResultReport].[cmbLEWO] = "<all>") AND (L_PART_NO =
'[forms].[frmCustomResultReport].[cmbLPart]' OR
[forms].[frmCustomResultReport].[cmbLPart] = "<all>") AND (L_SKID_NO =
'[forms].[frmCustomResultReport].[cmbLSKID]' OR
[forms].[frmCustomResultReport].[cmbLSKID] = "<all>") AND (L_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbLMatType]' OR
[forms].[frmCustomResultReport].[cmbLMatType] = "<all>") AND (L_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbLMatHeat]' OR
[forms].[frmCustomResultReport].[cmbLMatHeat] = "<all>") AND (L_HARD =
'[forms].[frmCustomResultReport].[cmbLHard]' OR
[forms].[frmCustomResultReport].[cmbLHard] = "<all>") AND (L_PLAT =
'[forms].[frmCustomResultReport].[cmbLPlat]' OR
[forms].[frmCustomResultReport].[cmbLPlat] = "<all>") AND (L_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbLCoat]' OR
[forms].[frmCustomResultReport].[cmbLCoat] = "<all>") AND (L_THREAD =
'[forms].[frmCustomResultReport].[cmbLThread]' OR
[forms].[frmCustomResultReport].[cmbLThread] = "<all>") )
AND (tblResults.K_ID) IN (Select K_ID from tblKey Where( K_EWO_NO =
'[forms].[frmCustomResultReport].[cmbKEWO]' OR
[forms].[frmCustomResultReport].[cmbKEWO] = "<all>") AND (K_PART_NO =
'[forms].[frmCustomResultReport].[cmbKPart]' OR
[forms].[frmCustomResultReport].[cmbKPart] = "<all>") AND (K_SKID_NO =
'[forms].[frmCustomResultReport].[cmbKSKID]' OR
[forms].[frmCustomResultReport].[cmbKSKID] = "<all>") AND (K_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbKMatType]' OR
[forms].[frmCustomResultReport].[cmbKMatType] = "<all>") AND (K_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbKMatHeat]' OR
[forms].[frmCustomResultReport].[cmbKMatHeat] = "<all>") AND (K_HARD =
'[forms].[frmCustomResultReport].[cmbKHard]' OR
[forms].[frmCustomResultReport].[cmbKHard] = "<all>") AND (K_PLAT =
'[forms].[frmCustomResultReport].[cmbKPlat]' OR
[forms].[frmCustomResultReport].[cmbKPlat] = "<all>") AND (K_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbKCoat]' OR
[forms].[frmCustomResultReport].[cmbKCoat] = "<all>") ) );


If I say show all results where L_MAT_TYPE = 5, I get results where the
L_MAT_TYPE = 56...

I tried doing the null thing, but I didn't understand it much, but what I
have seems to work. Please let me know what you think i should do. Thank you!

~Erica~











Ken Sheridan said:
Erica:

Let's hope so, but if you do need any further help post back.

Ken Sheridan
Stafford, England

Eka1618 said:
Now that I think about it, I think I still may need to track the lock by the
L_ID...

If I say where L_ID in (Select L_ID where .....) then I will get each L_ID
where L_PART_NO = this and/or L_MAT_Heat = that. Then the out put would be
each result using a L_ID listed in the query's results.

Maybe I just solved it myself, we'll see...lol









Eka1618 said:
Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

:

Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

:

Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
Click to expand...
Click to expand...
 
K

Ken Sheridan

Erica:

One thing I notice is that you've enclosed the reference to each control in
single quotes in the first part of each OR operation, e.g.

L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]'

This is actually looking for rows which contain the string
'[forms].[frmCustomResultReport].[cmbLEWO]' in the L_EWO_NO column, rather
than the value selected in the combo box. It should simply be:

L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]

The reference to the control is actually a parameter.

However, I don't really see how this would explain the behaviour you are
getting. In fact it should result in your getting no rows returned as we can
presumably rule out the L_MAT_TYPE column containing the string
'[forms].[frmCustomResultReport].[cmbLMatType]'. Using the LIKE operator
rather than the = operator would only produce the results you are getting if
used with a wildcard character, e.g.

L_MAT_TYPE LIKE [forms].[frmCustomResultReport].[cmbLMatType] & "*"

Used without the & "*" it would give the same results as the equality
operator.

I doubt you need concern yourself with the 'null thing'. I suspect your
combo boxes' RowSources have only the one column each, so it doesn't apply.

See what happens when you remove the single quotes around the parameters.
If it still doesn't produce the desired results then I would think the
problem probably stems from the underlying logical model, of which I have to
admit my understanding is far from clear. It would perhaps help if you could
explain what the three tables represent in terms of real world entities and
how they are related to each other.

Ken Sheridan
Stafford, England

Eka1618 said:
Hi Ken,

I have the query working like it should. But now I am getting results as if
I used the word "LIKE" as I had initially. I changed it a while ago and it is
still acting as if I have it in there. Here is my updated version of the
query:


SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE ((tblResults.L_ID)
In (select L_ID from tblLock
Where (L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]' OR
[forms].[frmCustomResultReport].[cmbLEWO] = "<all>") AND (L_PART_NO =
'[forms].[frmCustomResultReport].[cmbLPart]' OR
[forms].[frmCustomResultReport].[cmbLPart] = "<all>") AND (L_SKID_NO =
'[forms].[frmCustomResultReport].[cmbLSKID]' OR
[forms].[frmCustomResultReport].[cmbLSKID] = "<all>") AND (L_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbLMatType]' OR
[forms].[frmCustomResultReport].[cmbLMatType] = "<all>") AND (L_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbLMatHeat]' OR
[forms].[frmCustomResultReport].[cmbLMatHeat] = "<all>") AND (L_HARD =
'[forms].[frmCustomResultReport].[cmbLHard]' OR
[forms].[frmCustomResultReport].[cmbLHard] = "<all>") AND (L_PLAT =
'[forms].[frmCustomResultReport].[cmbLPlat]' OR
[forms].[frmCustomResultReport].[cmbLPlat] = "<all>") AND (L_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbLCoat]' OR
[forms].[frmCustomResultReport].[cmbLCoat] = "<all>") AND (L_THREAD =
'[forms].[frmCustomResultReport].[cmbLThread]' OR
[forms].[frmCustomResultReport].[cmbLThread] = "<all>") )
AND (tblResults.K_ID) IN (Select K_ID from tblKey Where( K_EWO_NO =
'[forms].[frmCustomResultReport].[cmbKEWO]' OR
[forms].[frmCustomResultReport].[cmbKEWO] = "<all>") AND (K_PART_NO =
'[forms].[frmCustomResultReport].[cmbKPart]' OR
[forms].[frmCustomResultReport].[cmbKPart] = "<all>") AND (K_SKID_NO =
'[forms].[frmCustomResultReport].[cmbKSKID]' OR
[forms].[frmCustomResultReport].[cmbKSKID] = "<all>") AND (K_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbKMatType]' OR
[forms].[frmCustomResultReport].[cmbKMatType] = "<all>") AND (K_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbKMatHeat]' OR
[forms].[frmCustomResultReport].[cmbKMatHeat] = "<all>") AND (K_HARD =
'[forms].[frmCustomResultReport].[cmbKHard]' OR
[forms].[frmCustomResultReport].[cmbKHard] = "<all>") AND (K_PLAT =
'[forms].[frmCustomResultReport].[cmbKPlat]' OR
[forms].[frmCustomResultReport].[cmbKPlat] = "<all>") AND (K_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbKCoat]' OR
[forms].[frmCustomResultReport].[cmbKCoat] = "<all>") ) );


If I say show all results where L_MAT_TYPE = 5, I get results where the
L_MAT_TYPE = 56...

I tried doing the null thing, but I didn't understand it much, but what I
have seems to work. Please let me know what you think i should do. Thank you!

~Erica~











Ken Sheridan said:
Erica:

Let's hope so, but if you do need any further help post back.

Ken Sheridan
Stafford, England

Eka1618 said:
Now that I think about it, I think I still may need to track the lock by the
L_ID...

If I say where L_ID in (Select L_ID where .....) then I will get each L_ID
where L_PART_NO = this and/or L_MAT_Heat = that. Then the out put would be
each result using a L_ID listed in the query's results.

Maybe I just solved it myself, we'll see...lol









:

Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

:

Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

:

Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
Click to expand...
Click to expand...
 
E

Eka1618

Hi Ken,

I didn't realize I left the single quotes in there, it was just something I
tried. The query results that I get is without using the single quotes.

I understand what you are saying about using LIKE and =, That's why I do not
understand why the results that come back from the query are as if I used a
wildcard.

I am creating a test database for engineering technitians to store test data
in and for others to request tests and then report on test results.

Each test REQUEST has a Lock, Key and Pattern Combination (sometimes
several). I have broken my tables like this:

1. tblREQUEST can have many LOCKS (tblLock), many KEYS (tblKey) and many
PATTERNS (tblPattern).

2. tblRequest can also have many TESTS (tblTest)

3. Each test is sent to a test queue (tblQueue) which has many RESULTS
(tblResults)

4. Each test Queue also can have many REVIEWS (tblReview)

I have seperated tblTest and tblQueue because issuing a test doesn't mean
that it should be automatically queued to be conducted. there is other
information about test queue here in this table that cannot be anywhere else
so I seperated the two.

The reason why tblLock, tblKey and tblPattern are seperated is because there
are times when there are many locks that associate with only one key and one
pattern; Times when there are many keys associated with one lock and one
pattern and times where there are many patterns associated with one lock and
one key. There is also a situation where there are many one lock/one key/
many pattern combinations in which case I needed an addtitional two tables to
enable the database to do so, and these table are only used in that situation.

I have gone through the table design over and over and have actually redone
it 3 times because it is so complex. I cannot imagine another way to relate
these tables to one another. I work independently as an intern on this
assignment, no one here knows how to program...at all. Unless someone looks
at this, I have to use my best judgement. Everything is working as it should
though, I just do not understand these query results...

Hopefully this explained it more for you. My bosses want to launch this in
the next couple weeks (I've been working on this since Jan), so I do not have
much time to redesign. Thank you for all the help so far! If you can think of
anything else, let me know :)

~Erica~





Ken Sheridan said:
Erica:

One thing I notice is that you've enclosed the reference to each control in
single quotes in the first part of each OR operation, e.g.

L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]'

This is actually looking for rows which contain the string
'[forms].[frmCustomResultReport].[cmbLEWO]' in the L_EWO_NO column, rather
than the value selected in the combo box. It should simply be:

L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]

The reference to the control is actually a parameter.

However, I don't really see how this would explain the behaviour you are
getting. In fact it should result in your getting no rows returned as we can
presumably rule out the L_MAT_TYPE column containing the string
'[forms].[frmCustomResultReport].[cmbLMatType]'. Using the LIKE operator
rather than the = operator would only produce the results you are getting if
used with a wildcard character, e.g.

L_MAT_TYPE LIKE [forms].[frmCustomResultReport].[cmbLMatType] & "*"

Used without the & "*" it would give the same results as the equality
operator.

I doubt you need concern yourself with the 'null thing'. I suspect your
combo boxes' RowSources have only the one column each, so it doesn't apply.

See what happens when you remove the single quotes around the parameters.
If it still doesn't produce the desired results then I would think the
problem probably stems from the underlying logical model, of which I have to
admit my understanding is far from clear. It would perhaps help if you could
explain what the three tables represent in terms of real world entities and
how they are related to each other.

Ken Sheridan
Stafford, England

Eka1618 said:
Hi Ken,

I have the query working like it should. But now I am getting results as if
I used the word "LIKE" as I had initially. I changed it a while ago and it is
still acting as if I have it in there. Here is my updated version of the
query:


SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE ((tblResults.L_ID)
In (select L_ID from tblLock
Where (L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]' OR
[forms].[frmCustomResultReport].[cmbLEWO] = "<all>") AND (L_PART_NO =
'[forms].[frmCustomResultReport].[cmbLPart]' OR
[forms].[frmCustomResultReport].[cmbLPart] = "<all>") AND (L_SKID_NO =
'[forms].[frmCustomResultReport].[cmbLSKID]' OR
[forms].[frmCustomResultReport].[cmbLSKID] = "<all>") AND (L_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbLMatType]' OR
[forms].[frmCustomResultReport].[cmbLMatType] = "<all>") AND (L_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbLMatHeat]' OR
[forms].[frmCustomResultReport].[cmbLMatHeat] = "<all>") AND (L_HARD =
'[forms].[frmCustomResultReport].[cmbLHard]' OR
[forms].[frmCustomResultReport].[cmbLHard] = "<all>") AND (L_PLAT =
'[forms].[frmCustomResultReport].[cmbLPlat]' OR
[forms].[frmCustomResultReport].[cmbLPlat] = "<all>") AND (L_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbLCoat]' OR
[forms].[frmCustomResultReport].[cmbLCoat] = "<all>") AND (L_THREAD =
'[forms].[frmCustomResultReport].[cmbLThread]' OR
[forms].[frmCustomResultReport].[cmbLThread] = "<all>") )
AND (tblResults.K_ID) IN (Select K_ID from tblKey Where( K_EWO_NO =
'[forms].[frmCustomResultReport].[cmbKEWO]' OR
[forms].[frmCustomResultReport].[cmbKEWO] = "<all>") AND (K_PART_NO =
'[forms].[frmCustomResultReport].[cmbKPart]' OR
[forms].[frmCustomResultReport].[cmbKPart] = "<all>") AND (K_SKID_NO =
'[forms].[frmCustomResultReport].[cmbKSKID]' OR
[forms].[frmCustomResultReport].[cmbKSKID] = "<all>") AND (K_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbKMatType]' OR
[forms].[frmCustomResultReport].[cmbKMatType] = "<all>") AND (K_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbKMatHeat]' OR
[forms].[frmCustomResultReport].[cmbKMatHeat] = "<all>") AND (K_HARD =
'[forms].[frmCustomResultReport].[cmbKHard]' OR
[forms].[frmCustomResultReport].[cmbKHard] = "<all>") AND (K_PLAT =
'[forms].[frmCustomResultReport].[cmbKPlat]' OR
[forms].[frmCustomResultReport].[cmbKPlat] = "<all>") AND (K_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbKCoat]' OR
[forms].[frmCustomResultReport].[cmbKCoat] = "<all>") ) );


If I say show all results where L_MAT_TYPE = 5, I get results where the
L_MAT_TYPE = 56...

I tried doing the null thing, but I didn't understand it much, but what I
have seems to work. Please let me know what you think i should do. Thank you!

~Erica~











Ken Sheridan said:
Erica:

Let's hope so, but if you do need any further help post back.

Ken Sheridan
Stafford, England

:

Now that I think about it, I think I still may need to track the lock by the
L_ID...

If I say where L_ID in (Select L_ID where .....) then I will get each L_ID
where L_PART_NO = this and/or L_MAT_Heat = that. Then the out put would be
each result using a L_ID listed in the query's results.

Maybe I just solved it myself, we'll see...lol









:

Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

:

Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

:

Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE (((tblResults.L_PART_NO) In (select L_PART_NO from tblLock Where
L_EWO_NO like [forms].[frmCustomResultReport].[cmbLEWO] and L_PART_NO like
[forms].[frmCustomResultReport].[cmbLPart] and L_SKID_NO like
[forms].[frmCustomResultReport].[cmbLSKID] and L_MAT_TYPE like
[forms].[frmCustomResultReport].[cmbLMatType] and L_MAT_HEAT like
[forms].[frmCustomResultReport].[cmbLMatHeat] and L_HARD like
[forms].[frmCustomResultReport].[cmbLHard] and L_PLAT like
[forms].[frmCustomResultReport].[cmbLPlat] and L_TOP_COAT like
[forms].[frmCustomResultReport].[cmbLCoat] and L_THREAD like
[forms].[frmCustomResultReport].[cmbLThread])));


I am almost thinking that i need an Iff statement or something to make this
work, but I am not sure where. If anyone has any suggestions, that would be
great, Thank you!

~Erica~
Click to expand...
Click to expand...
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E

Eka1618

So I feel bad that I wasted your time reading my long story about my DB, but
it is giving me the correct results..... I did some further testing this
morning and everything is just as I need it to be. I have alot of data to
look at and compare constantly. By the end of my work day everthing looks the
same to me, so maybe that what happened yesterday.

Thank you again for all the help, I really appreciate it!

~Erica~






Eka1618 said:
Hi Ken,

I didn't realize I left the single quotes in there, it was just something I
tried. The query results that I get is without using the single quotes.

I understand what you are saying about using LIKE and =, That's why I do not
understand why the results that come back from the query are as if I used a
wildcard.

I am creating a test database for engineering technitians to store test data
in and for others to request tests and then report on test results.

Each test REQUEST has a Lock, Key and Pattern Combination (sometimes
several). I have broken my tables like this:

1. tblREQUEST can have many LOCKS (tblLock), many KEYS (tblKey) and many
PATTERNS (tblPattern).

2. tblRequest can also have many TESTS (tblTest)

3. Each test is sent to a test queue (tblQueue) which has many RESULTS
(tblResults)

4. Each test Queue also can have many REVIEWS (tblReview)

I have seperated tblTest and tblQueue because issuing a test doesn't mean
that it should be automatically queued to be conducted. there is other
information about test queue here in this table that cannot be anywhere else
so I seperated the two.

The reason why tblLock, tblKey and tblPattern are seperated is because there
are times when there are many locks that associate with only one key and one
pattern; Times when there are many keys associated with one lock and one
pattern and times where there are many patterns associated with one lock and
one key. There is also a situation where there are many one lock/one key/
many pattern combinations in which case I needed an addtitional two tables to
enable the database to do so, and these table are only used in that situation.

I have gone through the table design over and over and have actually redone
it 3 times because it is so complex. I cannot imagine another way to relate
these tables to one another. I work independently as an intern on this
assignment, no one here knows how to program...at all. Unless someone looks
at this, I have to use my best judgement. Everything is working as it should
though, I just do not understand these query results...

Hopefully this explained it more for you. My bosses want to launch this in
the next couple weeks (I've been working on this since Jan), so I do not have
much time to redesign. Thank you for all the help so far! If you can think of
anything else, let me know :)

~Erica~





Ken Sheridan said:
Erica:

One thing I notice is that you've enclosed the reference to each control in
single quotes in the first part of each OR operation, e.g.

L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]'

This is actually looking for rows which contain the string
'[forms].[frmCustomResultReport].[cmbLEWO]' in the L_EWO_NO column, rather
than the value selected in the combo box. It should simply be:

L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]

The reference to the control is actually a parameter.

However, I don't really see how this would explain the behaviour you are
getting. In fact it should result in your getting no rows returned as we can
presumably rule out the L_MAT_TYPE column containing the string
'[forms].[frmCustomResultReport].[cmbLMatType]'. Using the LIKE operator
rather than the = operator would only produce the results you are getting if
used with a wildcard character, e.g.

L_MAT_TYPE LIKE [forms].[frmCustomResultReport].[cmbLMatType] & "*"

Used without the & "*" it would give the same results as the equality
operator.

I doubt you need concern yourself with the 'null thing'. I suspect your
combo boxes' RowSources have only the one column each, so it doesn't apply.

See what happens when you remove the single quotes around the parameters.
If it still doesn't produce the desired results then I would think the
problem probably stems from the underlying logical model, of which I have to
admit my understanding is far from clear. It would perhaps help if you could
explain what the three tables represent in terms of real world entities and
how they are related to each other.

Ken Sheridan
Stafford, England

Eka1618 said:
Hi Ken,

I have the query working like it should. But now I am getting results as if
I used the word "LIKE" as I had initially. I changed it a while ago and it is
still acting as if I have it in there. Here is my updated version of the
query:


SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
tblResults.K_PART_NO, tblResults.PAT_NO, tblResults.PAT_SIZE
FROM tblResults
WHERE ((tblResults.L_ID)
In (select L_ID from tblLock
Where (L_EWO_NO = '[forms].[frmCustomResultReport].[cmbLEWO]' OR
[forms].[frmCustomResultReport].[cmbLEWO] = "<all>") AND (L_PART_NO =
'[forms].[frmCustomResultReport].[cmbLPart]' OR
[forms].[frmCustomResultReport].[cmbLPart] = "<all>") AND (L_SKID_NO =
'[forms].[frmCustomResultReport].[cmbLSKID]' OR
[forms].[frmCustomResultReport].[cmbLSKID] = "<all>") AND (L_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbLMatType]' OR
[forms].[frmCustomResultReport].[cmbLMatType] = "<all>") AND (L_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbLMatHeat]' OR
[forms].[frmCustomResultReport].[cmbLMatHeat] = "<all>") AND (L_HARD =
'[forms].[frmCustomResultReport].[cmbLHard]' OR
[forms].[frmCustomResultReport].[cmbLHard] = "<all>") AND (L_PLAT =
'[forms].[frmCustomResultReport].[cmbLPlat]' OR
[forms].[frmCustomResultReport].[cmbLPlat] = "<all>") AND (L_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbLCoat]' OR
[forms].[frmCustomResultReport].[cmbLCoat] = "<all>") AND (L_THREAD =
'[forms].[frmCustomResultReport].[cmbLThread]' OR
[forms].[frmCustomResultReport].[cmbLThread] = "<all>") )
AND (tblResults.K_ID) IN (Select K_ID from tblKey Where( K_EWO_NO =
'[forms].[frmCustomResultReport].[cmbKEWO]' OR
[forms].[frmCustomResultReport].[cmbKEWO] = "<all>") AND (K_PART_NO =
'[forms].[frmCustomResultReport].[cmbKPart]' OR
[forms].[frmCustomResultReport].[cmbKPart] = "<all>") AND (K_SKID_NO =
'[forms].[frmCustomResultReport].[cmbKSKID]' OR
[forms].[frmCustomResultReport].[cmbKSKID] = "<all>") AND (K_MAT_TYPE =
'[forms].[frmCustomResultReport].[cmbKMatType]' OR
[forms].[frmCustomResultReport].[cmbKMatType] = "<all>") AND (K_MAT_HEAT =
'[forms].[frmCustomResultReport].[cmbKMatHeat]' OR
[forms].[frmCustomResultReport].[cmbKMatHeat] = "<all>") AND (K_HARD =
'[forms].[frmCustomResultReport].[cmbKHard]' OR
[forms].[frmCustomResultReport].[cmbKHard] = "<all>") AND (K_PLAT =
'[forms].[frmCustomResultReport].[cmbKPlat]' OR
[forms].[frmCustomResultReport].[cmbKPlat] = "<all>") AND (K_TOP_COAT =
'[forms].[frmCustomResultReport].[cmbKCoat]' OR
[forms].[frmCustomResultReport].[cmbKCoat] = "<all>") ) );


If I say show all results where L_MAT_TYPE = 5, I get results where the
L_MAT_TYPE = 56...

I tried doing the null thing, but I didn't understand it much, but what I
have seems to work. Please let me know what you think i should do. Thank you!

~Erica~











:

Erica:

Let's hope so, but if you do need any further help post back.

Ken Sheridan
Stafford, England

:

Now that I think about it, I think I still may need to track the lock by the
L_ID...

If I say where L_ID in (Select L_ID where .....) then I will get each L_ID
where L_PART_NO = this and/or L_MAT_Heat = that. Then the out put would be
each result using a L_ID listed in the query's results.

Maybe I just solved it myself, we'll see...lol









:

Ken,

I rearranged the query to how you wrote it and I think it might have done
the same thing as what I ended up with yesterday using the iif statement
(this was is simpler though).

I Believe the query works the way it is written to, however it's still not
producing the results i need. Let me explain tblLock:

table lock consists of L_ID (PK) that is an AutoNumber field. so there may
be times where you will have the same L_PART_NO, but different variations of
it, hence the need for L_ID.

In my results table I wanted to track which lock they were using, but I
tracked it by the L_PART_NO instead of L_ID because the users want to see
this information.

I am trying to establish a way to track the results that have a L_PART_NO of
this or a MAT_HEAT of that. It may not be necessary to have L_PART_NO in the
results table, but I do not know how to link these two tables together
because the are not directly connected in table relationships for other
reasons.

Basically, I am just trying to find the record(s) in the lock table that
match the values selected by the user in the combo boxes if that makes any
sense. so if a person select a value only for MAT_HEAT, I want to see all
results where the Lock Part Number's MAT_HEAT value matches whatever they
selected no matter what the lock part number is.

I hope this make sense... My table relationships must stay the way they are.
Everything flows the way it's supposed to, so I do see the need in changing
it. I just need to figure out how to do some complex reporting. I do not have
a big backgroud with it.

Let me know if you have any other suggestions, thank you!

~Erica~

:

Erica:

You need to evaluate whether the relevant column in the table matches the
value in the combo box, OR the combo box = "<All>". Consequently each of
these Boolean OR operations will evaluate to TRUE for rows where there is a
match for a selected value, or for every row in the case of the combo box's
value being the default <All> .

Each OR operation is parenthesised to force it to evaluate independently and
they are all tacked together in Boolean AND operations. Rows will only be
returned therefore where every parenthesised expression evaluates to TRUE for
that row.

So the WHERE condition goes like this:

WHERE (L_EWO_NO = [forms].[frmCustomResultReport].[cmbLEWO]
OR [forms].[frmCustomResultReport].[cmbLEWO] = "<All>")
AND (L_PART_NO = [forms].[frmCustomResultReport].[cmbLPart]
OR [forms].[frmCustomResultReport].[cmbLPart] = "<All>")
< and so on to>
AND (L_THREAD = [forms].[frmCustomResultReport].[cmbLThread]
OR [forms].[frmCustomResultReport].[cmbLThread] = "<All>")

NB: only use the LIKE operator if you are matching partial values, in which
case you'd incorporate wildcard characters, otherwise use the normal equality
operator (the equals sign). If you want selecting 'Smith' to return 'Smith',
'Smithson', 'Smithereen', 'Arrowsmith' etc then use LastName LIKE "*" &
cboLastName & "*", but to simply return 'Smith' use LastName = cboLastName.

The SQL above assumes that <All> is in the bound columns of the combo boxes'
RowSources in each case, and not in a visible column corresponding to a
hidden bound column (e.g. cases such as where a numeric EmployeeID is in a
hidden bound column but FirstName & " " & LastName is in the visible column).
In such circumstances I'd usually leave the bound column for <All> Null, in
which case rather than = "<All>" I'd use IS NULL (do not use '= NULL' note;
nothing equals NULL, not even another NULL).

Ken Sheridan
Stafford, England

:

Hello,

I am trying to create a query that will take values from a form consisting
of several combo boxes as its criteria.

What I want to do is show all records that meet the criteria that was
selected. For instance; if you have a form that consists of cmbA, cmbB and
cmbC and you choose a value in cmbA & cmbB only the query will return results
that match
cmbA AND cmbB.

right now, the query returns results that match every cmbo box value even if
the user chose <all> (the default value) I've tried using OR but that is not
what I want to use either.

I am wondering if this can even be done... Here is my code for the query:

SELECT tblResults.Q_INC, tblResults.SAMPLE_NO, tblResults.TENSION,
tblResults.NOTES, tblResults.OBSERVATIONS, tblResults.L_PART_NO,
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