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delete records older than 5 days .
Hello ,
I am little confused in writing the exact query i.e filling the correct details in the query .
To simplify let me explain....
I am using the query as
delete MYTABLE
where datediff(dd,loaddate,getdate())>5
I have a table now with loadate column which gets the default date and time . The loadate shows correct date and time when the data was imported in the table .
Now suppose if i want to delete previous 5 days records from today
( for e.g today is 20/08/2002 3:40:00 PM ) ideally it should delete all records which are 5 days older from today . i.e from 20/08/2002 3:40:00 PM to 15/08/2002 3:40:00 PM )
But when i execute the datediff command , it deletes the records previous than 15/08/2002 till 15/08/2002.
The records from 15/08/2002 to 20/08/2002 remain intact .
I am getting some different results .
Am i missing something in the query or i am confused about the calculation of the dates the datediff command performs .
Is the logic correct or i am missing someting important ?
Thanks and Regards
Admin001
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delete records older than 5 days . (reply)
You just need to change your sign to less than instead of greater than.
Currenly you are deleting records that are more than 5 days old but you really
was the last 5 days so that is records that are less than 5 days old.
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admin001 at 8/20/2002 9:53:00 AM
Hello ,
I am little confused in writing the exact query i.e filling the correct details in the query .
To simplify let me explain....
I am using the query as
delete MYTABLE
where datediff(dd,loaddate,getdate())>5
I have a table now with loadate column which gets the default date and time . The loadate shows correct date and time when the data was imported in the table .
Now suppose if i want to delete previous 5 days records from today
( for e.g today is 20/08/2002 3:40:00 PM ) ideally it should delete all records which are 5 days older from today . i.e from 20/08/2002 3:40:00 PM to 15/08/2002 3:40:00 PM )
But when i execute the datediff command , it deletes the records previous than 15/08/2002 till 15/08/2002.
The records from 15/08/2002 to 20/08/2002 remain intact .
I am getting some different results .
Am i missing something in the query or i am confused about the calculation of the dates the datediff command performs .
Is the logic correct or i am missing someting important ?
Thanks and Regards
Admin001
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