Update query

[phill86]

Hi,

I have a select query that works out the difference between a start and an end time using datediff as follows

SELECT T_ActiveSession .SessionID, T_ActiveSession .ProjID, T_ActiveSession .StartTime, T_ActiveSession .EndTime, T_ActiveSession .SessTypeID, DateDiff("n",[starttime],[endtime]) AS Expr1
FROM T_ActiveSession
GROUP BY T_ActiveSession .SessionID, T_ActiveSession .ProjID, T_ActiveSession .StartTime, T_ActiveSession .EndTime, T_ActiveSession .SessTypeID
HAVING (((T_ActiveSess ion.ProjID)=[Forms]![F_ClientDetails]![SF_Session].[Form]![ProjID]) AND ((T_ActiveSessi on.SessTypeID)=[Forms]![F_ClientDetails]![SF_Session].[Form]![SessTypeID]));

I then need to update a table with the following update query

UPDATE T_AssignHours SET T_AssignHours.C ompletedHrs = Sum([Query1]![Expr1]);

and i get the following message

"you tried to execute a query that does not include the specified expression 'CompletedHrs' as part of the aggregate function"

Any help is appreciated

[emsik1001]

Hi

UPDATE T_AssignHours SET T_AssignHours.C ompletedHrs = Sum([Query1]![Expr1]);

Do you want to update specific records or all records?

Try subquery or DSUM

p.s. Why do you want to put 'calculations' to the table?

Regards
Emil