I'm having some issues with my SQL syntax it seems.
I'm trying to create a trigger and then check if data is NULL or empty.
This is the code now thanks to Bill & Gordon:
DROP TRIGGER IF EXISTS `tablename_OnInsert`;
DELIMITER $$
CREATE TRIGGER `tablename_OnInsert` BEFORE INSERT ON `users`
FOR EACH ROW
BEGIN
IF NEW.`swid` IS NULL OR NEW.`swid` = '' THEN
SET NEW.`swid` = CONCAT('{', uuid(), '}');
END IF
END$$
;
The server still responds with an 1064:
/* SQL Error (1064): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'END' at line 7 */
I've been looking around to see what I am doing wrong here, but I just don't get it.
Well:
DROP TRIGGER IF EXISTS `tablename_OnInsert`;
DELIMITER $$
CREATE TRIGGER `tablename_OnInsert` BEFORE INSERT ON `users`
FOR EACH ROW
BEGIN
IF NEW.`swid` IS NULL OR NEW.`swid` = '' THEN
SET NEW.`swid` = CONCAT('{', uuid(), '}');
END IF;
END$$
Your problem appears to be the extra ) in the IF. However, I recommend BEGIN/END and setting the delimiter.
Related
I'm trying to add a trigger that should automatically update a datetime column only if is not present a SQL variable. The trigger code is the following
delimiter |
CREATE TRIGGER update_sync_date
BEFORE UPDATE ON posts
FOR EACH ROW
BEGIN
IF #disable_sync_date_update IS NULL OR #disable_sync_date_update <> 1 THEN
SET new.sync_date = CURRENT_TIMESTAMP
END IF
END|
delimiter ;
The error that I recieve is
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'END IF
END' at line 7
Thanks for helping
I've found the solution, here is the correct code:
delimiter |
CREATE TRIGGER update_sync_date
BEFORE UPDATE ON posts
FOR EACH ROW
BEGIN
IF #disable_sync_date_update IS NULL OR #disable_sync_date_update <> 1 THEN
SET new.sync_date = CURRENT_TIMESTAMP;
END IF;
END|
delimiter ;
I'm writing a trigger in MySQL to take log of table updates. The log table is called individuo_storico and the target table is called individuo. When individuo is updated, I want to check if IDQualifica and IDLivello are changed, if yes a record in individuo_storico is inserted.
I write down this code but I get a #1064 error, where's the syntax error?
use ore;
create trigger individuo_update after update on individuo
for each row
begin
if ( NEW.IDLivello <> OLD.IDLivello or NEW.IDQualifica <> OLD.IDQualifica) then
insert into individuo_storico(IDIndividuo, IDQualifica, IDLivello)
values (NEW.IDIndividuo, NEW.IDQualifica, NEW.IDLivello);
end if;
end;
1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 6
Please wrap your trigger creation with the monikers necessary so the db engine does not choke on it. So three areas:
1) line 1
2) right after the end;
3) and then a reset to a default delimiter.
Same concept is typical with stored proc creations.
DELIMITER $$
create trigger individuo_update after update on individuo
for each row
begin
if ( NEW.IDLivello <> OLD.IDLivello or NEW.IDQualifica <> OLD.IDQualifica) then
insert into individuo_storico(IDIndividuo, IDQualifica, IDLivello)
values (NEW.IDIndividuo, NEW.IDQualifica, NEW.IDLivello);
end if;
end;$$
DELIMITER ;
I am trying to make make a trigger, that will fill column B with value from column A if column B was not explicitly set in insert query. (column B is set to allow NULL and to default to NULL value)
DELIMITER $$
CREATE TRIGGER trigger_name BEFORE INSERT ON my_table FOR EACH ROW
BEGIN
IF (NEW.valueB IS NULL) THEN SET NEW.valueB = NEW.valueA ;
END
$$
But I am getting this error (not very helpful).
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 4
When I tried to locate this problematic empty string '' making the query like one word per line, mysql marked the line with '=' character as problematic.
I double checked the query for any non-ascii characters.
I am using mysql version 5.5.37-0ubuntu0.12.10.1 through commandline (eg not phpmyadmin).
You need to close the IF with END IF
DELIMITER $$
CREATE TRIGGER trigger_name BEFORE INSERT ON my_table
FOR EACH ROW
BEGIN
IF NEW.valueB IS NULL THEN
SET NEW.valueB = NEW.valueA ;
END IF ;
END;$$
delimiter ;
Check the example here http://dev.mysql.com/doc/refman/5.5/en/trigger-syntax.html
You forgot to close the IF statement. Read the syntax here. I think the code below will work for you.
DELIMITER $$
CREATE TRIGGER trigger_name BEFORE INSERT ON my_table
FOR EACH ROW
BEGIN
IF (NEW.valueB IS NULL) THEN
SET NEW.valueB = NEW.valueA ;
END IF
END $$
DELIMITER
I receive this message "#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 6" but can not figure out what is wrong.
(position and points are MEDIUMINT, they are not primary key neither unique)
Anyone?
CREATE TRIGGER pointsAssigns
before INSERT ON MyTable
FOR EACH ROW
BEGIN
IF NEW.position>6 THEN
set NEW.points=5;
END IF;
END;
As #Mihai mentioned either add closing END and change the DELIMITER
DELIMITER //
CREATE TRIGGER pointsAssigns
BEFORE INSERT ON MyTable
FOR EACH ROW
BEGIN
IF NEW.position > 6 THEN
SET NEW.points = 5;
END IF;
END //
DELIMITER ;
Here is a SQLFiddle demo
or make it one-line trigger and then you don't need neither BEGIN...END block nor changing the DELIMITER
CREATE TRIGGER pointsAssigns
BEFORE INSERT ON MyTable
FOR EACH ROW
SET NEW.points = IF(NEW.position > 6, 5, NEW.points);
Here is a SQLFiddle demo
NOTE: I initially thought my problem had to do with CONCAT, but since the exact error persisted even when I completely eliminated CONCAT from my query, I figured I should completely over-write of my original post.
I'm trying to set a trigger, and keep getting a Syntax Error.
When I tried this
CREATE TRIGGER set_aka_name
BEFORE INSERT ON sandbox_person
FOR EACH ROW
BEGIN
IF (NEW.aka IS NULL) THEN
SET NEW.aka = 'test value';
END IF;
END
...I got this error:
1064 - You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near '' at line 6
And when trying this (without the IF peren's)
CREATE TRIGGER set_aka_name
BEFORE INSERT ON sandbox_person
FOR EACH ROW
BEGIN
IF NEW.aka IS NULL THEN
SET NEW.aka = 'test value';
END IF;
END
...I get the same exact error
1064 - You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near '' at line 6
It's got to be something simple ... but I'm just not seeing it.
I'm on MySQL 5.1.36.
What am I missing?
Any pointers?
try to change delimiter first:
DELIMITER |
CREATE TRIGGER set_aka_name
BEFORE INSERT ON sandbox_person
FOR EACH ROW
BEGIN
IF NEW.aka IS NULL THEN
SET NEW.aka = 'test value';
END IF;
END|
DELIMITER ;
Maybe MySQL sees the first ";" as the end of CREATE TRIGGER
try this:
CREATE TRIGGER set_aka_name
BEFORE INSERT ON sandbox_person
FOR EACH ROW
BEGIN
IF NEW.aka IS NULL THEN
NEW.aka = CONCAT(NEW.fname, ' ', NEW.lname);
END IF;
END
there is a difference between IF () function and IF statement (see this)