Unable To Count Null Date Field

  • Thread starter Thread starter Rob
  • Start date Start date
R

Rob

I am attempting to count null date fields and group them by week field. The
following query identifies the fields with no problem.

SELECT tblSARData.WeekNumber, tblSARData.mannotifieddate
FROM tblSARData
WHERE isnull([tblSARData].[mannotifiedDate]);

Unfortunately, I'm not able to count them and group by the WeekNumber field.
Each attempt results in grouped week numbers and a 0 value for the count
which is incorrect. Here is an example. Any help would be appreciated.

SELECT tblSARData.WeekNumber, Count(tblSARData.mannotifieddate) AS
CountOfmannotifieddate
FROM tblSARData
WHERE (((IsNull([tblSARData].[mannotifiedDate]))<>False))
GROUP BY tblSARData.WeekNumber;
 
Rob said:
I am attempting to count null date fields and group them by week
field. The following query identifies the fields with no problem.

SELECT tblSARData.WeekNumber, tblSARData.mannotifieddate
FROM tblSARData
WHERE isnull([tblSARData].[mannotifiedDate]);

Unfortunately, I'm not able to count them and group by the WeekNumber
field. Each attempt results in grouped week numbers and a 0 value for
the count which is incorrect. Here is an example. Any help would be
appreciated.

SELECT tblSARData.WeekNumber, Count(tblSARData.mannotifieddate) AS
CountOfmannotifieddate
FROM tblSARData
WHERE (((IsNull([tblSARData].[mannotifiedDate]))<>False))
GROUP BY tblSARData.WeekNumber;

Count(FieldName) never includes in the count Null values. Use Count(*)
instead which does include them. If your criteria selects only the rows you
want then you only need the count of the rows, not of the Null dates.
 
Perfect! Thanks Rick.

Rick Brandt said:
Rob said:
I am attempting to count null date fields and group them by week
field. The following query identifies the fields with no problem.

SELECT tblSARData.WeekNumber, tblSARData.mannotifieddate
FROM tblSARData
WHERE isnull([tblSARData].[mannotifiedDate]);

Unfortunately, I'm not able to count them and group by the WeekNumber
field. Each attempt results in grouped week numbers and a 0 value for
the count which is incorrect. Here is an example. Any help would be
appreciated.

SELECT tblSARData.WeekNumber, Count(tblSARData.mannotifieddate) AS
CountOfmannotifieddate
FROM tblSARData
WHERE (((IsNull([tblSARData].[mannotifiedDate]))<>False))
GROUP BY tblSARData.WeekNumber;

Count(FieldName) never includes in the count Null values. Use Count(*)
instead which does include them. If your criteria selects only the rows you
want then you only need the count of the rows, not of the Null dates.
 

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