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fastest way for delete cascade [message #229339]

Fri, 06 April 2007 15:36

laiko
Messages: 10
Registered: February 2007

Junior Member

I have a hierarchy of tables which have huge data volume. Can you please advise me on what can be the fastest way to delete from the parent table all the way to its child tables? Thank you in advance.

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Re: fastest way for delete cascade [message #229370 is a reply to message #229339]

Sat, 07 April 2007 01:08

Michel Cadot
Messages: 68776
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

Maybe using "ON DELETE CASCADE" clause on foreign keys?

Regards
Michel

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Re: fastest way for delete cascade [message #229384 is a reply to message #229370]

Sat, 07 April 2007 02:46

laiko
Messages: 10
Registered: February 2007

Junior Member

Thanks, Michel, but I'm so sorry, I missed to mention that I am already using 'ON DELETE CASCADE'. What I would like to know is that is there any faster alternative??

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Re: fastest way for delete cascade [message #229386 is a reply to message #229384]

Sat, 07 April 2007 02:51

Michel Cadot
Messages: 68776
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

I don't see any above all if you want to do it safely and concurrently. I mean if other sessions work at the same time.

Regards
Michel

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