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9.3

MS ACCESS IIF QUERY WITH MIN/MAX PROBLEM

Asked by yaqny in SQL Query Syntax, Microsoft Access Database, Databases Miscellaneous

Tags: MS ACCESS, QUERY, IIF, AGGREGATE

I have table with fields:  ID,EmployeeID,DateTime
ID is auto-numbered field
and each EmployeeID can have many DateTime entries


I need query that returns (for chosen Day/EmployeeID):
0 when DateTime IsNull,
1 when min(DateTime)=max(DateTime),
2 when max(DateTime)>min(DateTime)

tried something like this:
SELECT IIf(IsNull(tblAttendance.DateTime),0,IIf(min(TimeValue(tblAttendance.DateTime))= max(TimeValue(tblAttendance.DateTime)),1,3)) AS Expr1, DateValue(tblAttendance.DateTime)
FROM tblAttendance
WHERE EmployeeID=2 And (DateValue(tblAttendance.DateTime)='7/20/2009')
ORDER BY DateTime, expr1;

But getting this error message
YOU TRIED TO EXECUTE QUERY THAT DOES NOT INCLUDE SPECIFIED EXPRESSION
IIf(min(TimeValue &.[&]&&
AS PART OF AN AGGREGATE FUNCTION

Whats the proper query in this case?
 
Attachments:
 
table
table
 
[+][-]11/07/09 07:30 AM, ID: 25766589Accepted Solution

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About this solution

Zones: SQL Query Syntax, Microsoft Access Database, Databases Miscellaneous
Tags: MS ACCESS, QUERY, IIF, AGGREGATE
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Solution Provided By: matthewspatrick
Participating Experts: 1
Solution Grade: A
 
 
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