Re: [SQL] Autogenerated Unique Index

On Tue, 7 Mar 2000 (Today), Antonio W. Lagnada wrote:

Try "serial" macro-type off "id" field.

#CREATE TABLE A (
# B serial,
# C char(5)
#);
NOTICE: CREATE TABLE will create implicit sequence 'a_b_seq' for SERIAL column'a.b'
NOTICE: CREATE TABLE/UNIQUE will create implicit index 'a_b_key' for table 'a'
CREATE

Or make it by hand:

#CREATE SEQUENCE A_B_seq;
#CREATE TABLE A (
# B int DEFAULT nextval('A_B_seq') NOT NULL,
# C char(5),
# PRIMARY KEY(B)
#);
NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'a_pkey' for table'a'
CREATE

AWL> Hi Andrzej,
AWL>
AWL> Does this mean that everytime I create a new record on the table, the field
AWL> "B" will be automatically incremented?
AWL>
AWL> - Antonio
AWL>
AWL> Andrzej Mazurkiewicz wrote:
AWL>
AWL> > cfmg_adm=> CREATE TABLE A (
AWL> > cfmg_adm(> B int NOT NULL,
AWL> > cfmg_adm(> C char(5),
AWL> > cfmg_adm(> PRIMARY KEY (B)
AWL> > cfmg_adm(> );
AWL> > NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'a_pkey' for
AWL> > table
AWL> > 'a'
AWL> > CREATE
AWL> > cfmg_adm=>
AWL> > Regards,
AWL> > Andrzej Mazurkiewicz
AWL> >
AWL> > > -----Original Message-----
AWL> > > From: Antonio W. Lagnada [SMTP:alagnada(at)lsil(dot)com]
AWL> > > Sent: 7 marca 2000 14:41
AWL> > > To: Pgsql-sql
AWL> > > Subject: [SQL] Autogenerated Unique Index
AWL> > >
AWL> > > Can someone give me a step-by-step instructions on how to generate a
AWL> > > unique autogenerated index in PostgreSQL?
AWL> > >
AWL> > > --
AWL> > > Antonio W. Lagnada
AWL> > >
AWL> > >
AWL> > > 952.921.8533
AWL> > > alagnada(at)lsil(dot)com_NOSPAM
AWL> > > Remove the _NOSPAM for
AWL> > > the actual email address
AWL> > > << File: Card for Antonio W. Lagnada >>
AWL>
AWL> --
AWL> Antonio W. Lagnada
AWL>
AWL> 952.921.8533
AWL> alagnada(at)lsil(dot)com_NOSPAM
AWL> Remove the _NOSPAM for
AWL> the actual email address
AWL>
AWL>

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