RE: [SQL] Autogenerated Unique Index - Mailing list pgsql-sql

> -----Original Message-----
> From:    Antonio W. Lagnada [SMTP:alagnada@lsil.com]
> Sent:    7 marca 2000 16:29
> To:    Andrzej Mazurkiewicz
> Cc:    Pgsql-sql
> Subject:    Re: [SQL] Autogenerated Unique Index
> 
> Hi Andrzej,
> 
> From reading the Users Guide, I came up with this example[Andrzej Mazurkiewicz]  [Andrzej Mazurkiewicz]  CREATE
SEQUENCEid START 1;
 
[Andrzej Mazurkiewicz]  
> # To create the table with the auto-incrementing index
> CREATE TABLE customer ( id  [Andrzej Mazurkiewicz]  int , firstname
> VARCHAR(30), lastname VARCHAR(30)
> );
> 
> # To insert
> INSERT INTO customer VALUES ( NEXTVAL('id'),'John','Doe');
> INSERT INTO customer VALUES ( NEXTVAL('id'),'Jane','Doe');[Andrzej Mazurkiewicz]  please remember that the above id
refersto
 
SERIAL name not to column name !


> # This should create a record:
> 
> id   firstname   lastname
> --   ---------   --------
> 1    John        Doe
> 2    Jane        Doe
> 
> Am I correcto to assume all this?
> 
> -- Antonio
> 
> Andrzej Mazurkiewicz wrote:
> 
> > Sorry I have misunderstood your question. I automatically creates
> primary
> > (it is more than unique) INDEX.
> > I include an example from Postgres Users Manual - CREATE SERIAL section:
> >
> > CREATE SEQUENCE serial START 101;
> >
> >
> > Select the next number from this sequence
> >
> > SELECT NEXTVAL ('serial');
> >
> > nextval
> > -------
> >     114
> >
> >
> > Use this sequence in an INSERT:
> >
> > INSERT INTO distributors VALUES (NEXTVAL('serial'),'nothing');
> >
> >
> > Set the sequence value after a COPY FROM:
> >
> >     CREATE FUNCTION distributors_id_max() RETURNS INT4
> >     AS 'SELECT max(id) FROM distributors'
> >     LANGUAGE 'sql';
> >     BEGIN;
> >     COPY distributors FROM 'input_file';
> >     SELECT setval('serial', distributors_id_max());
> >     END;
> >
> >
> > I hope it wiull help.
> > Regards,
> > Andrzej Mazurkiewicz
> >
> > andrzej@mazurkiewicz.org
> >
> > www.mazurkiewicz.org
> >
> > > -----Original Message-----
> > > From: Antonio W. Lagnada [SMTP:alagnada@lsil.com]
> > > Sent: 7 marca 2000 16:05
> > > To:   Andrzej Mazurkiewicz
> > > Cc:   Pgsql-sql
> > > Subject:      Re: [SQL] Autogenerated Unique Index
> > >
> > > Hi Andrzej,
> > >
> > > Does this mean that everytime I create a new record on the table, the
> > > field
> > > "B" will be automatically incremented?
> > >
> > > - Antonio
> > >
> > > Andrzej Mazurkiewicz wrote:
> > >
> > > > cfmg_adm=> CREATE TABLE A (
> > > > cfmg_adm(>        B int NOT NULL,
> > > > cfmg_adm(>        C char(5),
> > > > cfmg_adm(> PRIMARY KEY (B)
> > > > cfmg_adm(> );
> > > > NOTICE:  CREATE TABLE/PRIMARY KEY will create implicit index
> 'a_pkey'
> > > for
> > > > table
> > > > 'a'
> > > > CREATE
> > > > cfmg_adm=>
> > > > Regards,
> > > > Andrzej Mazurkiewicz
> > > >
> > > > > -----Original Message-----
> > > > > From: Antonio W. Lagnada [SMTP:alagnada@lsil.com]
> > > > > Sent: 7 marca 2000 14:41
> > > > > To:   Pgsql-sql
> > > > > Subject:      [SQL] Autogenerated Unique Index
> > > > >
> > > > > Can someone give me a step-by-step instructions on how to generate
> a
> > > > > unique autogenerated index in PostgreSQL?
> > > > >
> > > > > --
> > > > > Antonio W. Lagnada
> > > > >
> > > > >
> > > > > 952.921.8533
> > > > > alagnada@lsil.com_NOSPAM
> > > > > Remove the _NOSPAM for
> > > > > the actual email address
> > > > >  << File: Card for Antonio W. Lagnada >>
> > >
> > > --
> > > Antonio W. Lagnada
> > >
> > > 952.921.8533
> > > alagnada@lsil.com_NOSPAM
> > > Remove the _NOSPAM for
> > > the actual email address
> > >  << File: Card for Antonio W. Lagnada >>
> 
> --
> Antonio W. Lagnada
> 
> 952.921.8533
> alagnada@lsil.com_NOSPAM
> Remove the _NOSPAM for
> the actual email address
>  << File: Card for Antonio W. Lagnada >>