MSAccess - Design query to group by anniversary date
Lets say I have a table with these fields
LeaveDate
LeaveType
I want to write a query that groups by an annivesary date.
For example say 8th Feb.
So for this year any dates after 8 Feb would be "2010" and any dates before 8 Feb would show开发者_JS百科 "2009".
I want this to occur for all years data.
Understand??
Malcolm
Here is how I did it
SELECT Year([tblFoo]![Leave_date])-IIf(DateDiff("d",[tblFoo]![Leave_date],DateSerial(Year([tblFoo]![Leave_date]),2,8))>0,1,0) AS Year_group, Count(tblFoo.ID) AS CountOfID
FROM tblFoo
GROUP BY Year([tblFoo]![Leave_date])-IIf(DateDiff("d",[tblFoo]![Leave_date],DateSerial(Year([tblFoo]![Leave_date]),2,8))>0,1,0);
This counts the number of records for each “Year”. We use something similar for working out birthday years which change from person to person. In that case use can just replace the fixed 2 and 8 with the month and day they were born
You could create a query with a calculated column for anniversary date, then group by that column.
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