Re: Loop plpgsql recordset

[George Weaver <gweaver(at)shaw(dot)ca>]

On Thursday, January 25 Furesz Peter wrote:

>How can I loop a PL/PgSQL recorset variable? The example:

>    DECLARE
>        v_tmp_regi RECORD;
>        v_tmp RECORD;
>    BEGIN
>      SELECT * INTO v_tmp_regi FROM sulyozas_futamido sf WHERE
>sf.termekfajta_id=
>      a_termekfajta_id AND sf.marka_id=a_marka_id;
>
>        DELETE FROM sulyozas_futamido;
>
>        FOR v_tmp IN v_tmp_regi LOOP
>            --I would like to work here with the old recordset!
>        END LOOP;
>        ^^^^^^^^^^^^^^
>       -- This is not working !!!
>
>    END;

 

Its difficult to determine what you're trying to accomplish in the loop, but you may want to refer to 37.7.4. Looping Through Query Results in http://www.postgresql.org/docs/8.2/interactive/plpgsql-control-structures.html#PLPGSQL-RECORDS-ITERATING

 

Note that DELETE FROM sulyozas_futamido; will delete ALL records in sulyozas_futamido!

Perhaps:

 

FOR v_tmp IN  SELECT * FROM sulyozas_futamido sf

    WHERE sf.termekfajta_id = a_termekfajta_id AND sf.marka_id=a_marka_id;

 LOOP

 

     DELETE FROM sulyozas_futamido WHERE (some condition related to v_tmp???)

 

    Work with old record now in v_tmp

      

END LOOP;

 

Regards,

George