I created a simple trigger as below:
CREATE TRIGGER `trigger_update_rche_prep` BEFORE UPDATE ON `rche_prep`
FOR EACH ROW
SET NEW.case_number = 'ABC';
Which is working, when I want to add the BEGIN...END syntax to it, like below:
CREATE TRIGGER `trigger_update_rche_prep` BEFORE UPDATE ON `rche_prep`
FOR EACH ROW
BEGIN
SET NEW.case_number = 'ABC';
END;
It fails, I have no idea why this will happen, can anyone help?
Try this:
DELIMITER //
CREATE TRIGGER `trigger_update_rche_prep` BEFORE UPDATE ON `rche_prep`
FOR EACH ROW
BEGIN
SET NEW.case_number = 'ABC';
END;//
DELIMITER ;
Related
I have a problem with MySQL trigger. When I tried to update a database which is the mother of the trigger it says function not found
DELIMITER $$
CREATE TRIGGER trg_barang BEFORE UPDATE ON barang FOR EACH ROW BEGIN
INSERT INTO log_barang
set id_barang = OLD.id_barang,
harga_barang_baru=new.harga_barang,
harga_barang_lama=Old.harga_barang();
END
$$
DELIMITER ;
this trigger will show the data from "barang" and will store to this new trigger.and then when I try to update, it says function "old.harga_barang not found" how do I fix it?
i have written a trigger in mysqlworkbench that should update the product stock after a new line had been added to the order table(my code is in dutch so thats why im explaining this) But it doesn't work, when i try to apply it mysqlworkbench says its sql code contains errors.
Here's the trigger:
CREATE DEFINER = CURRENT_USER TRIGGER `winkel`.`bestelregel_AFTER_INSERT` AFTER INSERT ON `bestelregel` FOR EACH ROW
BEGIN
if Product.productnr = NEW.productnr
then
Update Product
Set Hoeveelheid = (Hoeveelheid - NEW.aantal)
Where productnr = NEW.productnr;
end if;
END
What is Product in the if statement? That is, no doubt, generating a syntax error, because it is unrecognized.
I think you intend for the body to be simply:
Update Product p.
Set Hoeveelheid = (Hoeveelheid - NEW.aantal)
Where p.productnr = NEW.productnr;
The if irrelevant.
I would expect the full version to look something like:
DELIMITER $$
CREATE DEFINER = CURRENT_USER TRIGGER `winkel`.`bestelregel_AFTER_INSERT`
AFTER INSERT ON `bestelregel` FOR EACH ROW
BEGIN
UPDATE Product p
SET Hoeveelheid = (Hoeveelheid - NEW.aantal)
WHERE p.productnr = NEW.productnr;
END $$
DELIMITER ;
You have delimiter trouble. You need
DELIMITER $$
CREATE ..... TRIGGER ...
BEGIN
END$$
DELIMITER ;
I am trying to implement the following trigger but I am getting a MySQL syntax error. The idea is that after each time the table is updated I want to set the updated 'valid' field to 0 if the 'banned' field has been changed to 1. Also is the logic below correct?
Create Trigger `customers` Before Update on `customers` for each row BEGIN
set new.valid = 0 WHERE new.banned = 1;
END;
Yes the trigger should be something as
delimiter //
Create Trigger `customers_update`
Before Update on `customers`
for each row
BEGIN
IF new.banned = 1
THEN set new.valid = 0 ;
END IF ;
END;//
As you can see I have used delimiter in the trigger which is needed for the trigger. There is a nice explanation of this here What does DELIMITER // do in a Trigger?
im using the following trigger to update the user table in another database in mysql 5.0.7
The creation of trigger gives no error but upon updating the user table in the first database the trigger is not working. Any suggestions?
DELIMITER $$
DROP TRIGGER IF EXISTS after_update_user;
CREATE TRIGGER after_update_user;
AFTER UPDATE ON db_test.user FOR EACH ROW;
BEGIN
UPDATE TABLE db_testplus.user;
SET name = NEW.name;
WHERE id = NEW.id;
END
$$
DELIMITER ;
I also used this code without the semicolons but still the same
DELIMITER $$
DROP TRIGGER IF EXISTS after_update_user
CREATE TRIGGER after_update_user
AFTER UPDATE ON db_test.user FOR EACH ROW
BEGIN
UPDATE TABLE db_testplus.user
SET name = NEW.name
WHERE id = NEW.id
END;
$$
DELIMITER ;
Finally the code that worked
delimiter |
DROP TRIGGER IF EXISTS after_update_user|
CREATE TRIGGER after_update_user AFTER UPDATE ON db_test.user
FOR EACH ROW BEGIN
UPDATE db_testplus.user SET name = NEW.name WHERE id = NEW.id;
END;
|
delimiter ;
Could you please check below
AFTER UPDATE ON db_test.user FOR EACH ROW
BEGIN
UPDATE TABLE db_testplus.user
SET name = NEW.name
WHERE id = NEW.id
END;
Try this;
CREATE TRIGGER after_update_user
AFTER UPDATE ON db_test.user FOR EACH ROW
UPDATE TABLE db_testplus.user
SET name = NEW.name
WHERE id = NEW.id;
Omitting begin-end keywords worked for me.
This works for me in MySQL 5.1.73:
CREATE TRIGGER `after_update`
AFTER UPDATE ON `test_table`
FOR EACH ROW UPDATE another_db.updated_table
SET some_name = NEW.some_name
WHERE id = NEW.id
I hav a table with several fields. One field is "date_assigned" and the other is "assigned". "date_assigned" has a datatype of timestamp and can be null. "assigned" has a datatype of tinyint and the values are either 0 (default; 'not assigned') or 1 ('assigned').
I would like to create a trigger that would automatically update the "assigned" value to 1 when "date_assigned" is updated with a value (is not null).
I've used triggers before, but have not used them in conjunction with checking if a value is null. I'm unclear on the syntax, so any help would be appreciated. So far, I've tried:
DELIMITER $$
CREATE
TRIGGER `<database>`.`<trigger_name>` AFTER UPDATE
ON `<database>`.`<table>`
FOR EACH ROW BEGIN
IF(NEW.date_assigned IS NOT NULL) THEN
UPDATE <table> SET assigned = '1';
END$$
DELIMITER ;
I just get Error Code: 1064. I looked upo the code, and it appears that it's a syntax error. So what syntax mistake am I making, and is this even the correct 'grammar'?
Try putting BEGIN in a new line as follows.
DELIMITER $$
CREATE
TRIGGER `<database>`.`<trigger_name>` AFTER UPDATE
ON `<database>`.`<table>`
FOR EACH ROW
BEGIN
IF(NEW.date_assigned IS NOT NULL) THEN
UPDATE <table> SET assigned = '1';
END; //Change here also.
$$
DELIMITER ;
This is because of default delimiter in MySQL set to ;. So, the first line should look like DELIMITER $$;
DELIMITER $$;
CREATE TRIGGER `<database>`.`<trigger_name>`
AFTER UPDATE ON `<database>`.`<table>`
FOR EACH ROW BEGIN
IF(NEW.date_assigned IS NOT NULL) THEN
UPDATE <table> SET assigned = '1';
END$$
DELIMITER ;