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08.13.2004 at 01:09AM PDT, ID: 21092483
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8.2

[HELP] Stored Procedure, Trigger, Trigger Function

Asked by engtat in PostgreSQL Database

Tags: , ,

Platform: Postgre 7.x and PgAdmin III

tbltest table
Code:
CREATE TABLE public.tbltest
(
  test_id int2 NOT NULL DEFAULT 0,
  name text,
  CONSTRAINT tbltest_pkey PRIMARY KEY (test_id)
) WITH OIDS;

tblresult table
Code:
CREATE TABLE public.tblresult
(
  result_id int2 NOT NULL DEFAULT 0,
  name text,
  found bool,
  position int8,
  CONSTRAINT tblresult_pkey PRIMARY KEY (result_id)
) WITH OIDS;

trigger
Code:
CREATE TRIGGER tr_log_update
  BEFORE INSERT
  ON public.tbltest
  FOR EACH ROW
  EXECUTE PROCEDURE public.log_update();

trigger function
Code:
CREATE OR REPLACE FUNCTION public.log_update()
  RETURNS trigger AS
'BEGIN
      UPDATE tblresult SET found = TRUE WHERE name = NEW.name;
RETURN NULL;
END;
'
  LANGUAGE 'plpgsql' VOLATILE;

Here is what I want,
1. Insert a new entry to table tbltest with id and name
2. Trigger started, run stored procedure.
3. If the name on table tblresult is found and match, the flag(boolean) will set to true.

Error when run this SQL
INSERT INTO tbltest VALUES (123, 'beta');

Code:
WARNING:  Error occurred while executing PL/pgSQL function log_update
WARNING:  line 2 at SQL statement
ERROR:  parser: parse error at or near "$1" at character 23

Thanks in advanceStart Free Trial
[+][-]08.13.2004 at 03:57AM PDT, ID: 11791632

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[+][-]08.15.2004 at 08:47PM PDT, ID: 11806887

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[+][-]08.17.2004 at 08:58AM PDT, ID: 11821983

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[+][-]08.17.2004 at 07:19PM PDT, ID: 11827081

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[+][-]08.17.2004 at 09:10PM PDT, ID: 11827429

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[+][-]08.17.2004 at 11:17PM PDT, ID: 11827828

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[+][-]08.18.2004 at 01:11AM PDT, ID: 11828220

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[+][-]08.18.2004 at 02:52AM PDT, ID: 11828837

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[+][-]08.19.2004 at 05:52PM PDT, ID: 11848263

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About this solution

Zone: PostgreSQL Database
Tags: procedure, stored, trigger
Sign Up Now!
Solution Provided By: earthman2
Participating Experts: 2
Solution Grade: A
 
 
[+][-]08.19.2004 at 07:37PM PDT, ID: 11848830

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[+][-]08.20.2004 at 09:30AM PDT, ID: 11852941

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[+][-]08.20.2004 at 10:03AM PDT, ID: 11853304

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[+][-]08.22.2004 at 06:25PM PDT, ID: 11866716

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[+][-]08.22.2004 at 09:00PM PDT, ID: 11867163

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