Re: Auto-uppercase inserted column
От | Bruce Momjian |
---|---|
Тема | Re: Auto-uppercase inserted column |
Дата | |
Msg-id | 200005201126.HAA15302@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Auto-uppercase inserted column (Jurgen Defurne <defurnj@glo.be>) |
Список | pgsql-general |
> Bruce Momjian wrote: > > > Is there a way to automatically uppercase a column upon insert or > > update? > > > > I don't think rules can do that because of the problem of recursion. > > The only way I think it can be done is using triggers. Is that correct? > > > > Since triggers are available in postgreSQL, that should be the way, yes. > You have to have access to the NEW values in your trigger, and then you > should say something like > NEW.field := upper(NEW.field) ; > > In older database systems this would be done in the entry system, but > then you have a coupling between your application and the database. Thanks. I was just seeking confirmation for my book. I expected triggers where the only way. -- Bruce Momjian | http://www.op.net/~candle pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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