Sql Delete statement not working

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Hi all,

I have 2 tables Objects and ObjectLogs.

Objects Table:-

ObjectID, Name,      Description, CreatedDate
1, Delimiter, this is delimiter, 2/26/2013 4:00:00 AM
2, Separater, this is a separater, 2/26/2013 4:00:00 AM
3, Serializer, this is a serializer, 4/26/2013 4:00:00 AM

ObjectsLog table :-

ObjectID, IterationNumber
1, 15
1, 34
1, 45
2, 24
2, 33
3, 56
3, 67
3, 77

I want to delete the records from ObjectsLog table where Objects are of 30 days or more old.

I do it using the following query

SQL

DELETE 
FROM ObjectsLog
WHERE ObjectID IN (SELECT DISTINCT ObjectID 
FROM Objects
WHERE CreatedDate <= GETDATE() - 30)

But this deletes records only with ObjectsID '1'

When I select the older records with the query

SQL

SELECT DISTINCT ObjectID
FROM Objects
WHERE CreatedDate &lt;= GETDATE() - 30

it selects both 1 and 2.

But the delete query does not delete records with ObjectID 2.

Is there any problem with the delete query..

Thanks in advance,

Posted 13-May-13 18:51pm

SruthiR

Updated 13-May-13 19:51pm

Maciej Los

v2

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[no name] 14-May-13 0:58am

What is the error you are getting while deleting..

SruthiR 14-May-13 1:04am

There is no error. But it deletes only the records with ObjectID 1. It has to delete records with ObjectID 2 also.

1 solution

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_Damian S_ · Answer 1 · 2013-05-13T19:11:00

Solution 1

Your query should work... Is there something else stopping it from working? Perhaps a link from IterationNumber to another table?

Here's another option for what you are trying to do...

SQL

DELETE ObjectsLog.*
FROM ObjectsLog
inner join Objects on Objects.ObjectID = ObjectsLog.ObjectID
WHERE CreatedDate <= GETDATE() - 30

Posted 13-May-13 19:11pm

_Damian S_

Updated 13-May-13 19:14pm

v2

Comments

SruthiR 14-May-13 1:12am

CreatedDate is not a column in ObjectsLog table. It is a column in Objects table. Thats why i need another level.

_Damian S_ 14-May-13 1:15am

Yes, I just updated my answer...

SruthiR 14-May-13 1:49am

it did not work. But I used a right join then it worked.
DELETE ObjectsLog.*
FROM ObjectsLog
right join Objects on Objects.ObjectID = ObjectsLog.ObjectID
WHERE CreatedDate <= GETDATE() - 30