Re: how does one replace a row in Postgresql? (ala MySQL REPLACE)
От | Philip Hallstrom |
---|---|
Тема | Re: how does one replace a row in Postgresql? (ala MySQL REPLACE) |
Дата | |
Msg-id | 20011211163822.O70071-100000@teak.adhesivemedia.com обсуждение исходный текст |
Ответ на | how does one replace a row in Postgresql? (ala MySQL REPLACE) (Terrence Brannon <metaperl@mac.com>) |
Ответы |
why doesn't \d table_name show the table inheritance graph?
temp tables versus the global sql area |
Список | pgsql-sql |
Try to UPDATE the row. If that fails, then insert it. There's no REPLACE in postgresql (unless someone added it and forgot to tell me :) On Tue, 11 Dec 2001, Terrence Brannon wrote: > A common task is to check to see if a row with a certain primary > key exists before inserting it. If the row exists, then you > simply update/overwrite its contents with the new row data. > Otherwise you insert it. > > MySQL has a REPLACE command which does this. > > I didn't see one in the Postgresql manual. How do you do this in > Postgresql? > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org) >
В списке pgsql-sql по дате отправления: