Re: : Execute a string of command in sql'script

pblunat wrote:
> Hi all,
> I am so sorry but problem below is very urgent for me now!!!
> If isn't possible to do, i must take another way of developpement for my
> data base.
>
> I'm using PostgreSQL 7.0.2 on RedHat 6.0.
>
>  I compose a SQL command string with function below :
>
>
>  CREATE FUNCTION bdrm_copy(text, text) RETURNS text AS '
>
>   DECLARE
>    baseact  ALIAS FOR $1;
>    namefich ALIAS FOR $2;
>    path0 TEXT;
>    path1 TEXT;
>    path2 TEXT;
>    path3 TEXT;
>   BEGIN
>    SELECT INTO path0 CAST(ig_tempo AS TEXT)
>    FROM ti_bdrm
>    WHERE ig_base = baseact;
>    path0  := trim(path0) || trim(namefich);
>    path1 := ''COPY ttx_window7 TO \'\''';
>    path2 := path1 || path0;
>    path3 := ''\'\''';
>    path0  := path2 || path3 || '';'';
>    RETURN path0 ;
>   END;'
>  LANGUAGE 'plpgsql';
>
>
>  the result of :
>
>  SELECT bdrm_copy('MOHO99', 'test2.txt') AS my_command_string;
>
>  is :
>
>                 my_command_string
>  -----------------------------------------------
>   COPY ttx_window7 TO '/db/bdrm/out/test2.txt';
>
>
>  Is it possible to execute this line of command? More generally, can one
>  execute the contents of a variable or a field in postgresql' script?

    It will be possible in 7.1. With current BETA4 you can do an

        EXECUTE path0;

    just before the RETURN and it'll do the job.


Jan

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