Re: how do i count() similar items
От | jackassplus |
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Тема | Re: how do i count() similar items |
Дата | |
Msg-id | bfaab403-5fd0-421d-af18-2e30bdbfde08@p22g2000pre.googlegroups.com обсуждение исходный текст |
Ответ на | how do i count() similar items (jackassplus <jackassplus@gmail.com>) |
Ответы |
Re: how do i count() similar items
Re: how do i count() similar items |
Список | pgsql-general |
<snip> > To ensure data integrity, > you should probably create a fruit_type table with a unique column that > lists the possible types, and then foreign key the fruit_type column in > the fruits table to that to ensure nothing funky is entered. An enum > for type is another possibility. In the real world, this column actiually holds Operating Systems. I have 7 variants of Windows XP, even more of server, a dozen *nixes, etc, etc and it is fed from an external app. So I am looking for a magic query, or even a perl function to wrap up insde a procedure, whatever.
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