RE: [SQL] function that returns a set of records and int eger(both of them)‏

2008-07-12 Thread daniel blanco

Ok, i see... well. when i have to return a set of records i'll use 
sql and when i have to do stored procedure of functions i'll use plpsql in this 
case but you're telling me that it will change in the 8.4 version. won't it?
 
 
> Date: Sun, 13 Jul 2008 07:06:07 +0200> From: [EMAIL PROTECTED]> To: [EMAIL 
> PROTECTED]> Subject: Re: [SQL] function that returns a set of records and 
> integer(both of them)‏> CC: pgsql-sql@postgresql.org> > Hello> > 2008/7/13 
> daniel blanco <[EMAIL PROTECTED]>:> > Ok, thanks pavel. i think 
> i'll try set of cursors. by the> > way in t-sql i did it as follows:> > 
> table users with a field called name> >> > create procedure 
> list_user_by_name> > @info_name varchar> > as> > declare @sw> > begin> > 
> select @n=(select count(*) from users where name like> > (@info_name+'%'))> > 
> if @sw>0> > begin> > select * where name like (@info_name+'%')> > return 1> > 
> end> > else> > begin> > return 0> > end> > end> >> > do you thing 
> return_status or global variables? It doesn't exist in> PostreSQL. Your 
> sample is typical example, what can be in stored> procedure for MS and what 
> would not be on Oracle like rdbms. This code> is little bit ineffective. You 
> have t
 o call seq scan on users two> times. Minimally this code on pg and oracle is:> 
> create function list_user_by_name(info_name)> returns users as $$> select * 
from users where name like $1 || '%'> $$ language sql strict;> -- you don't 
need logical info about returned set - this information> is inside returned 
set, it is just empty or not empty.> > but it's better use directly well select 
than stored procedure in this> case (8.4 will be different) - On Oracle like 
rdbsm SELECTs are not> wrapped to procedures.> > p.s. postgresql doesn't 
support global (session variables) - this> topic was discussed in different 
thread this week> > Regards> Pavel> > > as you see i do a select and a return 
at the same time when de sw variable> > is > than 0. i was expecting to do a 
similiar function with plpgsql o sql in> > postgresql> >> >> >> Date: Sat, 12 
Jul 2008 09:05:45 +0200> >> From: [EMAIL PROTECTED]> >> To: [EMAIL PROTECTED]> 
>> Subject: Re: [SQL] function that returns a 
 set of records and integer(both> >> of them)‏> >> CC: 
pgsql-sql@postgresql.org> >>> >> 2008/7/11 daniel blanco <[EMAIL PROTECTED]>:> 
>> > Hi Everyone> >> >> >> > I would like to know if i can create a function 
that returns a set of> >> > record> >> > with the sql statement: select and a 
integer, i mean both of them,> >> > because i> >> > remenber that in sql server 
(transact sql) i can do that in a stored> >> > procedure doing a select 
statement and a return of a integer in the same> >> > procedure,> >>> >> when I 
worked with T-SQL this wasn't possible - stored procedure> >> should return 
recordset or multirecord set or OUT variables. And it> >> was solution. When I 
would returns some similar like you, I had to> >> re turn two recordsets.> >>> 
>> i'm migrating to postgresql and i have stored procedures like> >> > this in 
my sql server database, can i do that with postgresql?> >>> >> You cannot 
return integer and recordset from function now. There is> >> one workaro
 und, you can return set of cursors.> >>> >> Regards> >> Pavel Stehule> >>> >> 
>> >> > Thanks.> >> > > >> > Get news, 
entertainment and everything you care about at Live.com. Check> >> > it> >> > 
out!> >>> >> --> >> Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)> 
>> To make changes to your subscription:> >> 
http://www.postgresql.org/mailpref/pgsql-sql> >> >> > 
> > Connect to the next generation of MSN 
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RE: [SQL] function that returns a set of records and int eger(both of them)‏

2008-07-12 Thread daniel blanco

Ok, thanks pavel. i think i'll try set of cursors. by the way 
in t-sql i did it as follows:
table users with a field called name
 
create procedure list_user_by_name
@info_name varchar
as
declare @sw
begin
 select @n=(select count(*) from users where name like (@info_name+'%'))
 if @sw>0
 begin
   select * where name like (@info_name+'%')
   return 1
 end
 else
 begin
   return 0
 end
end
 
as you see i do a select and a return at the same time when de sw variable is > 
than 0. i was expecting to do a similiar function with plpgsql o sql in 
postgresql
> Date: Sat, 12 Jul 2008 09:05:45 +0200> From: [EMAIL PROTECTED]> To: [EMAIL 
> PROTECTED]> Subject: Re: [SQL] function that returns a set of records and 
> integer(both of them)‏> CC: pgsql-sql@postgresql.org> > 2008/7/11 daniel 
> blanco <[EMAIL PROTECTED]>:> > Hi Everyone> >> > I would like to know if i 
> can create a function that returns a set of record> > with the sql statement: 
> select and a integer, i mean both of them, because i> > remenber that in sql 
> server (transact sql) i can do that in a stored> > procedure doing a select 
> statement and a return of a integer in the same> > procedure,> > when I 
> worked with T-SQL this wasn't possible - stored procedure> should return 
> recordset or multirecord set or OUT variables. And it> was solution. When I 
> would returns some similar like you, I had to> return two recordsets.> > i'm 
> migrating to postgresql and i have stored procedures like> > this in my sql 
> server database, can i do that with postgresql?> > You canno
 t return integer and recordset from function now. There is> one workaround, 
you can return set of cursors.> > Regards> Pavel Stehule> > >> > 
Thanks.> > > > Get news, entertainment 
and everything you care about at Live.com. Check it> > out!> > -- > Sent via 
pgsql-sql mailing list (pgsql-sql@postgresql.org)> To make changes to your 
subscription:> http://www.postgresql.org/mailpref/pgsql-sql
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[SQL] function that returns a set of records and integer(both of them)‏

2008-07-11 Thread daniel blanco

Hi Everyone I would like to know if i can create a function that returns a set 
of record with the sql statement: select and a integer, i mean both of them, 
because i remenber that in sql server (transact sql) i can do that in a stored 
procedure doing a select statement and a return of a integer in the same 
procedure, i'm migrating to postgresql and i have stored procedures like this 
in my sql server database, can i do that with postgresql? Thanks.
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