Patrice OLIVER wrote:
> Hello,
>
> In this example, I use 2 tables :
> create table types (
> typnum integer primary key,
> catcode varchar(2),
> typlib varchar(35));
>
> create table uv (
> uvnum varchar(5) primary key,
> typnum integer,
> uvlib varchar(50));
>
> alter table uv
> add constraint fk_uv_type foreign key (typnum)
> references types (typnum)
> on delete restrict on update restrict;
>
> I also use stored procedures :
>
> create function numtype(varchar) returns integer as '
> declare
> codetype alias for $1;
> coderet integer;
> begin
> select into coderet typnum from types
> where typcode = codetype and catcode = ''UV'';
why not -> select *typenum* into coderet from types where typcode = codetype and catcode = ''UV'';
