You can either use the datatype "SERIAL" or if you have a way of
generating unique IDs based off of microtimes, you can get away with
putting a unique value into field "id" as it is right now.
Roj Niyogi
pgHoster
PostgreSQL web hosting
angelo.rigo@globo.com wrote:
>Hi !
>I´m doing my first publishing system for a last aquired boooks for a library.
>
>the problem begin in the id field, wich i choose to be primary key and unique.
>i could just insert data one time the others give me this error:
>
> Cannot insert a duplicate key into unique index biblioteca_pkey
>
>i use this piece of code below to insert the data:
>
>$query = "INSERT INTO biblioteca (id, autor, titulo, editora) values ('$id',
>'$autor', '$titulo', '$editora')";
>$result = pg_exec($db, $query);
>
>may i can alter the id collumn and the query to insert the data anybody
>knows what exactly to do ?
>
>Thank´s
>
>Ângelo
>
>
>
>
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