tags:

views:

52

answers:

1
Q: 

Truncate with condition

Hi,

truncate ->this resets the entire table, is there a way via truncate to reset particular records/check conditions.

For ex: i want to reset all the data and keep last 30 days inside the table.

Thanks.

A: 

No, TRUNCATE is all or nothing. You can do a DELETE FROM <table> WHERE <conditions> but this loses the speed advantages of TRUNCATE.

ceejayoz  2010-09-13 22:19:09
Thanks, assuming that condition, how do i keep last 10 days data and delete the rest (for say the table has 10 million records), in an optimized manner.
Sharpeye500  2010-09-13 22:20:13
The speed from TRUNCATE is because it doesn't write to the logs
OMG Ponies  2010-09-13 22:21:35

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