execute a procedure from another procudure?

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Hello,

Most of my posts were deleted and I don't know and actually, I'm not sure where and how to post a new question.    Someone told me to join the pssql group and I received so many email post and reply from different posts and/or email pgsql-admin for new question.

Please let me know if this is not a right place to do since the forum is not as same as oracle and/or mysql.


I have script in Oracle procedure as Pragma autonomous_transaction:

CREATE OR REPLACE EDITIONABLE PROCEDURE "CIDR_STAGING"."PR_WRITE_ERROR_LOG" is
        PRAGMA AUTONOMOUS_TRANSACTION;
begin
   insert into cidrmgmt.errorlog(
                         tstamp, os_user,host,module,errorcode,errormsg)
        values
                (sysdate, v_os_user, v_host, v_module, v_ErrorCode, v_ErrorMsg );
        commit;
end;
/

and another procedure to call transaction procedure:
CREATE OR REPLACE EDITIONABLE PROCEDURE "CIDR_STAGING"."PR_MIG_STG_FORMS" ( v_Ret OUT number )
as
        v_ErrorCode             number;
        v_ErrorMsg              varchar2(512);
        v_Module                        varchar2(32) := 'PR_MIG_STG_FORMS';
begin

        ----
        -- Simply delete the data from production table
        ----
        delete from cidrdba.ref_forms where 1=1;

        ----
        -- Simply copy the data from staging into production
        ----
        insert into cidrdba.ref_forms(
           form_number, form_title, mig_filename
                )
                select form_number, form_title, mig_filename
                from cidr_staging.stg_ref_forms;
        ----
        -- Set the return code to 0
        ----
        v_Ret := SQLCODE;

   pr_write_error_log( sys_context('userenv','session_user'),
      sys_context('userenv','host'), v_Module,
      0, 'Starting MERGE Process' );
 
   v_Ret := 0;
 
   ----
   ----
   -- STG_REF_ACTION_CODES
   ----
   if v_Ret = 0 then
      ----
      -- Perform the merge on REF_ACTION_CODES
      ----
      pr_write_error_log( sys_context('userenv','session_user'),
         sys_context('userenv','host'), v_Module,
         0, 'Started merging STG_REF_ACTION_CODES' );
 
      cidr_staging.pr_mig_stg_action_codes( v_Ret );
      v_Ret := SQLCODE;
 
      pr_write_error_log( sys_context('userenv','session_user'),
         sys_context('userenv','host'), v_Module,
         0, 'Finished merging STG_REF_ACTION_CODES' );
   end if;

----
-- Exception error handler
----
exception
        when others then
                v_ErrorCode := SQLCODE;
                v_ErrorMsg  := SQLERRM;
                v_Ret       := v_ErrorCode;

                ----
                -- Commit the record into the ErrorLog
                ----
                pr_write_error_log( sys_context('userenv','session_user'),
                    sys_context('userenv','host'), v_Module,
                         v_ErrorCode, v_ErrorMsg );
        ----
        -- Intentionally leaving the "commit" to application
        ----
end;
/

and I converted it to Postgres Pragma autonomous_transaction and I'm not sure its corrected but it didn't give any error.

create or replace FUNCTION "PR_WRITE_ERROR_LOG" ( v_os_user IN varchar(4000), v_host IN
 varchar(4000), v_module IN varchar(4000), v_errorcode IN int, v_errormsg IN varchar(4000) ) 
 RETURNS VOID 
as $$

BEGIN
START TRANSACTION;
   insert into cidrmgmt.errorlog(
                         tstamp, os_user,host,module,errorcode,errormsg)
        values
                (current_timestamp, v_os_user, v_host, v_module, v_ErrorCode, v_ErrorMsg );

        /* commit; */
end;
$$ LANGUAGE plpgsql;
 

CREATE OR REPLACE FUNCTION "CIDR_STAGING"."PR_MIG_STG_FORMS" ( v_Ret OUT int ) RETURNS integer
as $$
declare
        v_ErrorCode             int;
        v_ErrorMsg              varchar(512);
        v_Module                varchar(32) = 'PR_MIG_STG_FORMS';

begin
        ----
        -- Simply delete the data from production table
        ----
        delete from cidrdba.ref_forms where 1=1;

        ----
        -- Simply copy the data from staging into production
        ----
        insert into cidrdba.ref_forms(
           form_number, form_title, mig_filename
                )
                select form_number, form_title, mig_filename
                from cidr_staging.stg_ref_forms;
        ----
        -- Set the return code to 0
        ----
        v_Ret := SQLCODE;

   RAISE INFO 'calling "pr_write_error_log"(%)',( sys_context('userenv','session_user'),
      sys_context('userenv','host'), v_Module,
      0, 'Starting MERGE Process' );

   v_Ret := 0;

   ----
   ----
   -- STG_REF_ACTION_CODES
   ----
   if v_Ret = 0 then
      ----
      -- Perform the merge on REF_ACTION_CODES
      ----
      RAISE INFO 'calling "pr_write_error_log"(%)',( sys_context('userenv','session_user'),
         sys_context('userenv','host'), v_Module,
         0, 'Started merging STG_REF_ACTION_CODES' );

or?

PERFORM pr_write_error_log( sys_context('userenv','session_user'),
                    sys_context('userenv','host'), v_Module,
                         v_ErrorCode, v_ErrorMsg );

      PERFORM cidr_staging.pr_mig_stg_action_codes( v_Ret );  --> should I use RAISE INFO to call this procedure too?
      v_Ret := SQLCODE;

      RAISE INFO 'calling "pr_write_error_log"(%)',( sys_context('userenv','session_user'),
         sys_context('userenv','host'), v_Module,
         0, 'Finished merging STG_REF_ACTION_CODES' );
   end if;

or?

PERFORM pr_write_error_log( sys_context('userenv','session_user'),
                    sys_context('userenv','host'), v_Module,
                         v_ErrorCode, v_ErrorMsg );

----
-- Exception error handler
----
exception
        when others then
                v_ErrorCode := SQLCODE;
                v_ErrorMsg  := SQLERRM;
                v_Ret       := v_ErrorCode;
 
                ----
                -- Commit the record into the ErrorLog
                ----
RAISE NOTICE 'Calling "CIDR_STAGING"."PR_WRITE_ERROR_LOG"(%)', ( sys_context('userenv','session_user'),
        sys_context('userenv','host'), v_Module,
        v_ErrorCode, v_ErrorMsg );

or
PERFORM pr_write_error_log( sys_context('userenv','session_user'),
                    sys_context('userenv','host'), v_Module,
                         v_ErrorCode, v_ErrorMsg );
        --
        -- Intentionally leaving the "commit" to application
        ----
end;
$$ LANGUAGE plpgsql;

and how should I execute another function within the function like Oracle?  I have searched and found parameters raise log, raise info, raise before and perform.  I want to understand how to call the function w/in a function like Oracle would you please explain it?

thank you for all your help.

 v/r,

Bach-Nga

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