Re: Cascading Deletes
От | Stephan Szabo |
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Тема | Re: Cascading Deletes |
Дата | |
Msg-id | Pine.BSF.4.10.10009061048330.89808-100000@megazone23.bigpanda.com обсуждение исходный текст |
Ответ на | Cascading Deletes (Craig May <craig.may@s2.enthdimension.com.au>) |
Список | pgsql-sql |
I think a references constraint on ID referencing _ID with ON DELETE CASCADE should do what you want. Stephan Szabo sszabo@bigpanda.com On Wed, 6 Sep 2000, Craig May wrote: > Hi, > > I have a tables having this structure: > > ID (int) | _ID (int) | Name (String) > > > _ID is the parent of ID. > > I'm looking for the best method to perform a cascade delete. For example, I > delete _ID, it in turn deletes ID, and should ID also be an entry within _ID, it > would continue through the chain. > > For example: > > 0 0 Base > 1 0 Sib1 > 2 0 Sib2 > 3 0 Sib3 > 4 1 Sib1_1 > 5 1 Sib1_2 > > > Deleting Base would remove all the entries. Deleting Sib1 would delete Sib1_1 > and Sib1_2. > Can anyone help out here? > > Regards, > Craig May > > Enth Dimension > http://www.enthdimension.com.au >
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