MySQL/MariaDB TRIGGER - mysql

I get an error when I try to create the below trigger on MySQL/MariaDB
CREATE TRIGGER `ABC` BEFORE INSERT ON `TABLE1`
FOR EACH ROW BEGIN
DECLARE LCL_VAR INTEGER;
SET LCL_LCL_VAR = NEW.A - NEW.B;
SET NEW.D= V;
END;
ERROR
CREATE TRIGGER Q_DUR_CALC BEFORE INSERT ON TASK_Q_SWH
FOR EACH ROW BEGIN
DECLARE LCL_Q_DUR INTEGER;
MySQL said: Documentation
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 '' at line 3
I've got a couple other triggers that I used to build this one. I can't figure out what is wrong syntactically with this. Can I please request for help to spot the problem with this?

When you write a trigger you must specify a delimiter so that mysql explicitly executes your trigger block within the specified delimiter. If the delimiter is not provided then when it encounters any ; within the trigger statement it will try to execute the command till that block and hence you may get errors.
If you are using any user interface tools for generating the trigger you may check if there is an option to set the delimiter like in PHPMyadmin.
In CLI the trigger needs to be having a delimiter and it becomes
delimiter //
create trigger Q_DUR_CALC before insert on TASK_Q_SWH
for each row
begin
declare LCL_Q_DUR INTEGER;
set LCL_Q_DUR = new.TQ_TASK_DUR - new.TQ_TASK_RUN_DUR;
SET new.TQ_Q_DUR = LCL_Q_DUR;
end;//
delimiter ;

The problem was with the ";" after END. Strange that it complained about line 3!!
Here is the corrected version
CREATE TRIGGER `Q_DUR_CALC` BEFORE INSERT ON `TASK_Q_SWH`
FOR EACH ROW BEGIN
DECLARE LCL_Q_DUR INTEGER;
SET LCL_Q_DUR = NEW.TQ_TASK_DUR - NEW.TQ_TASK_RUN_DUR;
SET NEW.TQ_Q_DUR = LCL_Q_DUR;
END

Related

MySql Syntax error when creating trigger to insert calculated value

This is my first time trying to create a MySql trigger but I'm running into syntax errors that I can't identify. I am trying to have the trigger insert a calculated value when a row is updated. Below is my code, but I keep getting syntax errors when I try to execute it, and I cannot see where the error is. Can someone please look, what am I doing wrong?
DROP TRIGGER ins_cop_dhw;
CREATE TRIGGER ins_cop_dhw BEFORE INSERT ON `2017010001_data`
FOR EACH ROW
BEGIN
IF (NEW.`_007E` = 1 AND `_00A2` > 0) THEN
SET NEW.`_00B7` = NEW.`_0096` / NEW.`_00A2`;
END IF;
IF (NEW.`_007D` = 1 AND `_00A2` > 0) THEN
SET NEW.`_00B8` = (NEW.`_0096` / NEW.`_00A2`);
END IF;
END;
Here is the error I get in MySQL Workbench, but it's not much help. :/
Error Code: 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 5
MySQL Workbench highlights the end of line 6 as the start of the syntax error.
As said by #Akina I was missing the delimiter statements. Here is fixed code.
delimiter //
DROP TRIGGER ins_cop_dhw;
CREATE TRIGGER ins_cop_dhw BEFORE INSERT ON `2017010001_data`
FOR EACH ROW
BEGIN
IF (NEW.`_007E` = 1 AND NEW.`_00A2` > 0) THEN
SET NEW.`_00B7` = NEW.`_0096` / NEW.`_00A2`;
END IF;
IF (NEW.`_007D` = 1 AND NEW.`_00A2` > 0) THEN
SET NEW.`_00B8` = (NEW.`_0096` / NEW.`_00A2`);
END IF;
END//
delimiter ;
As per the advice of #Akina I read the Create Procedure documentation from the dev.mysql.com site and the below quote highlighted the importance of using delimiter
The example uses the mysql client delimiter command to change the statement delimiter from ; to // while the procedure is being defined. This enables the ; delimiter used in the procedure body to be passed through to the server rather than being interpreted by mysql itself. See Section 25.1, “Defining Stored Programs”.

Unexplainable MySQL Error #1064 for Empty String On creating After Update Trigger?

I was running MySQL with Server Version: 10.1.34-MariaDB (Distributed within XAmpp 7.2.7-0-VC15-installer) on Windows 8.1 machine, using PhpMyadmin on Google Chrome to access Mysql database and i got this error :
#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 '' at line 4
for this create trigger syntax :
DROP TRIGGER IF EXISTS Tsopd_main_AfterUpdate;
CREATE TRIGGER Tsopd_main_AfterUpdate AFTER UPDATE
ON sopd_main FOR EACH ROW
BEGIN
SET #jns = 1;
END
When i changed the code like this :
DROP TRIGGER IF EXISTS Tsopd_main_AfterUpdate;
CREATE TRIGGER Tsopd_main_AfterUpdate AFTER UPDATE
ON sopd_main FOR EACH ROW
BEGIN
END
or like this:
DROP TRIGGER IF EXISTS Tsopd_main_AfterUpdate;
CREATE TRIGGER Tsopd_main_AfterUpdate AFTER UPDATE
ON sopd_main FOR EACH ROW
BEGIN
-- SET #jns = 1;
END
it worked.
Can anybody Help me to show me what is wrong?
Thank you.
You need to use the DELIMITER directive to change the query delimiter, so you can use ; inside the trigger definition.
DELIMITER $$
DROP TRIGGER IF EXISTS Tsopd_main_AfterUpdate$$
CREATE TRIGGER Tsopd_main_AfterUpdate AFTER UPDATE
ON sopd_main FOR EACH ROW
BEGIN
SET #jns = 1;
END$$
DELIMITER ;

When Creating Trigger I got Error #1064 in Mysql 5

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
My Trigger
CREATE TRIGGER `register_notification_after_register`
`AFTER INSERT ON register FOR EACH ROW BEGIN
Set #notification = CONCAT('New Member Register. Membership Code is',' ',new.membership_no,'.');
Set #notificationfor =CONCAT('New Membership');
call notification_masterAddUpdate(1,#notification,#notificationfor,new.reg_date,1);
END
try this:
DELIMITER $$
CREATE TRIGGER `register_notification_after_register`
AFTER INSERT ON register FOR EACH ROW BEGIN
Set #notification = CONCAT('New Member Register. Membership Code is',' ',new.membership_no,'.');
Set #notificationfor =CONCAT('New Membership');
call notification_masterAddUpdate(1,#notification,#notificationfor,new.reg_date,1);
END
$$ -- I am done server, end of block
DELIMITER ;
you had an extra backtick on line two. One needs to set the DELIMITER to block the whole thing. With create event, create stored proc, create trigger, delimiters clue the server into when the whole chunk is done. Remember that the ; ends a statement. The delimiter statement suspends that in favor of something else, then resets at end of block

Can't create MySQL procedure to update table

I am trying to make a procedure to update an existing user. It receives the name of the user and then increments his points column. I have it like this:
CREATE PROCEDURE addPoints (IN nomeus varchar(20))
BEGIN
UPDATE User
SET
points=points+1
WHERE (nome=nomeus) ;
END;
However, I get this error:
#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 '' at line 8
How can I fix it?
When in doubt just go to dev.mysql they have some great documentation there.
http://dev.mysql.com/doc/refman/5.0/en/create-procedure.html
Looks like you found the answer to your own question. However, if you change any of the code in the procedure, don't forget to drop the procedure before trying to create it again.
Drop Procedure if exists addPoints;
http://dev.mysql.com/doc/refman/5.0/en/drop-procedure.html
Yeah, I had to use delimiters:
delimiter //
CREATE PROCEDURE addPoints(IN nomeuser varchar(256))
BEGIN
UPDATE User
SET
points = points + 1
WHERE nome = nomeuser;
END;//
delimiter ;

Eclipse DTP still doesn't handle delimiter statements

This
use sample_db;
CREATE TRIGGER bar_in
BEFORE INSERT ON bar
FOR EACH ROW
BEGIN
DECLARE foo INT;
END;
fails with
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 5
How to solve this syntax error (MySQL server is 5.5)?
is it possible that triggers are disabled or some such?
EDIT: This is a problem with Eclipse DTP existing since 2009, bugzilla
I believe the error was related to the delimiter. Try this:
DELIMITER $$
CREATE TRIGGER bar_in
BEFORE INSERT ON bar
FOR EACH ROW
BEGIN
DECLARE foo INT;
END $$
DELIMITER ;