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Re: add to table which name is in table

From: Oliver Elphick <olly(at)lfix(dot)co(dot)uk>
To: teknet(at)poczta(dot)onet(dot)pl
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: add to table which name is in table
Date: 2004-07-17 08:39:41
Message-ID: 1090053581.25749.69.camel@linda (view raw or flat)
Thread:
Lists: pgsql-admin
On Sat, 2004-07-17 at 08:41, teknet(at)poczta(dot)onet(dot)pl wrote:
> Hello
> 
> i have table:
> 
> create table table_names (
> id                      SERIAL,
> name                VARCHAR(75) NOT NULL
> );
> 
>  
> 
> and for each name in table_names i have table (which name is name field from
> table_names).
> 
> So in table_names i have records:
> 
> 1 table1
> 
> 2 table2
> 
> 3 table3
> 
>  
> 
> So i have three other tables named: table1 table2 table3.
> 
> And i want to operate on that tables by reading their names from
> table_names. I tried:
> 
> select * from (select name from table_names where id=1) as something;
> 
> but i received only:
> 
>  table_names
> --------------
>  table1
> (1 row)
> 
> And i wanted to receive everything from table1.
> 
> How can i do it ?

SQL can't do that.  You would need to do it by EXECUTE statements in a
PL/pgSQL function.

-- 
Oliver Elphick                                          olly(at)lfix(dot)co(dot)uk
Isle of Wight                              http://www.lfix.co.uk/oliver
GPG: 1024D/A54310EA  92C8 39E7 280E 3631 3F0E  1EC0 5664 7A2F A543 10EA
                 ========================================
     "But my God shall supply all your need according to his
      riches in glory by Christ Jesus."     Philippians 4:19


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