RE: [SQL] auto_increment?
От | Pham, Thinh |
---|---|
Тема | RE: [SQL] auto_increment? |
Дата | |
Msg-id | 551413BBBB03D111BF880060B01AACCE139FD0@home.priority.net обсуждение исходный текст |
Список | pgsql-sql |
How about using "serial" in the place of "auto_increment"? such as CREATE TABLE table ( id serial, name text, email text); I guess you already know this but i thought i'd just mention it anyway, using "table" for table name wouldn't work ;-) Thinh > -----Original Message----- > From: Rodrigo Bernardo Pimentel [mailto:rbp@pobox.com] > Sent: Thursday, October 21, 1999 10:45 AM > To: pgsql-sql@postgreSQL.org > Subject: [SQL] auto_increment? > > > Hi. > I recently had to port a script from using Postgres to MySQL. > In Postgres, when I have to use a unique id, I create a sequence > and call nextval('sequence') each time I insert a new line in > the table. > MySQL doesn't have sequences (as far as the > documentation shows). > So I had to look for an alternative. I found an atribute > "auto_increment" > which seems pretty interesting. If I do > CREATE TABLE table ( > id int4 primary key auto_increment, > name text, > email text); > > It automatically assigns the next value when I do > INSERT INTO table (nome, email) values ('My name', > 'me@somewhere.com'); > > When I noticed MySQL didn't have sequences, I cursed a > lot. When I > found this out, though, I kept wondering if Postgres also had > it, but I > couldn't find any mention in the documentation. Does anyone > know if something > similar exists? Am I doing thins the hard way? Is there any > other way of > automagically getting unique ids? > TIA, > > > rbp > > ______________________________________________________________ > __________ > Rodrigo Bernardo Pimentel <rbp@pobox.com>| GPG KeyID: 81F85A48 > LinuxSP <http://www.linuxsp.org.br>| Fingerprint: > AirGeeks <http://www.airgeeks.org>|7E62 9CA2 C95B > FC86 B334 > _____________ Debian Linux User ______________|203E C011 2E4D > 81F8 5A48 > > ************ >
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