IIF statement in query criteria, help!

[Angela]

I have a query in which one date need to be filtered based on another field.
If the field [last] =1 , the data needs to be filtered showing only data
where [ShiftDate]>=[Start1]. If the field [last]=2, it is
[shiftdate]>=[Start2]. So in the criteria for field [ShiftDate], I entered
"iif([last]=1,[shiftdate]>=[start1],[shiftdate]>=[start2])". I don't get an
error, but I also don't get any results. If I enter ">=[start1]" or
[shiftdate]>=[start1] instead of the iif statement, I get the results
expected. I'm pretty sure that I've used iif statements in criteria before,
but clearly there's something wrong with this one. Can anyone help?

 

[Jeff Boyce]

Please post the expression you are using...

Regards

Jeff Boyce
Microsoft Access MVP

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[KARL DEWEY]

If [Last] can only be equal to 1 or 2 then this criteria goes below
[shiftdate] in the design grid --

= IIF([Last]=1, [start1], [start2])

Or SQL --
WHERE [shiftdate]>= IIF([Last]=1, [start1], [start2])


--
Build a little, test a little.

I have a query in which one date need to be filtered based on another field.
If the field [last] =1 , the data needs to be filtered showing only data
where [ShiftDate]>=[Start1]. If the field [last]=2, it is
[shiftdate]>=[Start2]. So in the criteria for field [ShiftDate], I entered
"iif([last]=1,[shiftdate]>=[start1],[shiftdate]>=[start2])". I don't get an
error, but I also don't get any results. If I enter ">=[start1]" or
[shiftdate]>=[start1] instead of the iif statement, I get the results
expected. I'm pretty sure that I've used iif statements in criteria before,
but clearly there's something wrong with this one. Can anyone help?