Please help me to solve this query

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Hi
I got the error like "at most one record can be returned by this subquery"

Please help me to solve this query

SQL

UPDATE UserMenu SET UserMenu.MenuOrderNo = MenuOrderNo-1 WHERE ((([MenuOrderNo])=(select MenuOrderNo from UserMenu where(((MenuID) =7) AND ((UserId)='1'))+1)) AND ((UserMenu.UserId)='1'))

thanks in advance

Sheethal

Posted 24-Aug-12 10:06am

smsheethal

Updated 24-Aug-12 10:18am

Mehdi Gholam

v2

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**Zoltán Zörgő** · Accepted Answer · 2012-08-24T10:21:00

Solution 1

The (select MenuOrderNo from UserMenu where(((MenuID) =7) AND ((UserId)='1'))+1)) AND ((UserMenu.UserId)='1')) subquery returned more than one row. If this is normal, and your logic allows it, use IN instead of = before it, like this:

SQL

UPDATE UserMenu SET UserMenu.MenuOrderNo = MenuOrderNo-1 WHERE ((([MenuOrderNo]) IN (select MenuOrderNo from UserMenu where(((MenuID) =7) AND ((UserId)='1'))+1)) AND ((UserMenu.UserId)='1'))

Posted 24-Aug-12 10:21am

Zoltán Zörgő

Updated 24-Aug-12 10:23am

v2

Comments

ridoy 24-Aug-12 16:26pm

right..IN is good one..+5 from me

Maciej Los 24-Aug-12 17:00pm

Good answer, my 5!

smsheethal 24-Aug-12 17:35pm

thank you for your suggestion

Wendelius · Accepted Answer · 2012-08-24T10:25:00

The problem is in your comparison. You use equal comparison for MenuOrderNo so the select must fetch exactly 0 or 1 records. Now it returns more than one record.

Depending on your logic you either need to change the comparison or the select. If it's acceptable to update several rows then you should use IN operator, for example:

SQL

UPDATE UserMenu SET UserMenu.MenuOrderNo = MenuOrderNo-1 WHERE ((([MenuOrderNo]) IN (select MenuOrderNo from UserMenu where(((MenuID) =7) AND ((UserId)='1'))+1)) AND ((UserMenu.UserId)='1'))

If you need to update a single record, then go through the SELECT statement to see why it is returning multiple rows.