Hi All,

I'm doing some processing in perl to determine which records I want to delete - I end up with a list of about 20,000 (in a database of around 200,000 records)

I tried doing the delete in perl (prepare the delete query then itterate round the list executing with each value) and the performance is terrible.

In the end I wrote the values to a file, used the sybase bulk copy tool to throw them into a temporary table and did a "delete from table where id in (select id form temp table)"

The performance is much better (4 seconds vs about 10 minutes) but it just feels like a bit of a hack

Anyone know a way to improve the performance of this type of opperation staying within perl?

Thanks

simm

In reply to Perl DBI (sybase) rapidly delete large number of records by simm42

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