I want create a procedure (for copying the values of one table(mover_location) to another table(mover_history) on updation) ,and want to call up on that on a trigger in postgresql with phppgadmin.
Here is what i have tried :
PROCEDURE :-
CREATE OR REPLACE FUNCTION log_mover_location()
RETURNS trigger AS
BEGIN
INSERT INTO mover_history(reg_id,last_seen_lat,last_seen_long,last_seen_location_geog,last_updated_at)
VALUES(SELECT
mover_location.reg_id,mover_location.last_seen_lat,mover_location.last_seen_long,mover_location.last_seen_location_geog,mover_location.last_updated_at FROM mover_location) WHERE mover_history.reg_id =
#mover_location.reg_id;
END;
TRIGGER :-
CREATE TRIGGER update_mover_history
AFTER UPDATE
ON mover_location
FOR EACH ROW
EXECUTE PROCEDURE log_mover_location();
Trigger created successfully ,
But it give me a error as follows when executing the procedure:
ERROR: syntax error at or near "BEGIN"
LINE 4: BEGIN
^
the Procedure that you're created is incorrect, for example
CREATE OR REPLACE FUNCTION procedure_name()
RETURNS trigger AS
$BODY$
BEGIN
/*----logic----*/
END
$BODY$
LANGUAGE plpgsql
Related
I am trying to create my first trigger in postgres but I keep receiving this: [42883] ERROR: function clear_article_flag does not exist.
What I am trying to do is: when a new row is inserted on articles with a non 'automatic' author to set is_automatic flag to false for the specific id.
CREATE OR REPLACE FUNCTION clear_article_flag()
RETURNS trigger
LANGUAGE plpgsql AS
$$
BEGIN
update flags
set is_automatic = false where id= new.id;
return NEW;
END ;
$$;
CREATE TRIGGER maintain_dummy_flag
AFTER INSERT
ON articles
FOR EACH ROW
WHEN ( new.author not in ('automatic') )
EXECUTE PROCEDURE clear_article_flag();```
My mistake, being the first time when I've created a trigger and a sql function, I didn't know that first I should run the part that creates the function and then the trigger.
I am using Postgres version 13.1. I want to have a single file where I could store all stored procedures and create them in one shot. But when I put multiple stored procedures in a single file, I get the following error. What am I missing?
In my test.sql file I have the following content:
create or replace procedure tmp1(
)
language plpgsql as
$$
declare
l_count integer;
begin
select 1 into l_count;
raise info 'count: %', l_count;
end;
$$
create or replace procedure tmp2(
)
language plpgsql as
$$
declare
l_count integer;
begin
select 1 into l_count;
raise info 'count: %', l_count;
end;
$$
If I only have the first procedure it gets created and I can call it successfully. But the moment I have the second identical procedure with a different name, it gives me an error as follows (when run from psql):
psql=> \i test.sql
psql:test.sql:23: ERROR: syntax error at or near "create"
LINE 12: create or replace procedure tmp2(
OK - right after posting I tried putting a ";" after the end of first procedure and it works
The code below is my code to create trigger function to change column "pass".
create or replace function change_pass()
returns trigger as
$$
begin
NEW.pass := 'XXXXXXXXX';
return NEW;
end
$$
language plpgsql;
create trigger change_pass
AFTER insert or update on "D_ACCOUNT"
for each row execute procedure change_pass();
When i called insert, i did not see any changes in my data.
Can anyone explain to me where i was wrong?
You need a BEFORE trigger to change values in the NEW record:
create trigger change_pass
BEFORE insert or update on "D_ACCOUNT"
for each row execute procedure change_pass();
Here is code I have used to create FUNCTION and TRIGGER.
CREATE OR REPLACE FUNCTION inc_post_loves() RETURNS TRIGGER AS
$BODY$
BEGIN;
...
END;
$BODY$
language plpgsql;
CREATE TRIGGER on_post_love_create
AFTER INSERT ON "PostLoves"
FOR EACH ROW EXECUTE PROCEDURE inc_post_loves()
Now I would like to modify FUNCTION inc_post_loves().
If I will execute CREATE OR REPLACE FUNCTION inc_post_loves()... again, do I have guarantee that previously created trigger won't be deleted (like cascade) and it wont fail during replacing function?
I'm using PostgreSQL with pgAdmin and I can't get a trigger function to work. However, as far as I am aware, you can return type trigger in PostgreSQL?
CREATE OR REPLACE FUNCTION validate_Cat()
RETURNS TRIGGER AS
$BODY$
BEGIN
-- CODE here
END;
$BODY$
LANGUAGE SQL;
CREATE TRIGGER validate_Cat
AFTER INSERT OR UPDATE ON Category
FOR EACH ROW execute procedure validate_Cat();
SOLVED, had to change language to PLPGSQL