Answers for "create trigger syntax mysql"

SQL
2

mysql create trigger

CREATE
    TRIGGER `event_name` BEFORE/AFTER INSERT/UPDATE/DELETE
    ON `database`.`table`
    FOR EACH ROW BEGIN
		-- trigger body
		-- this code is applied to every 
		-- inserted/updated/deleted row
    END;
    
CREATE
	TRIGGER `blog_after_insert` AFTER INSERT 
	ON `blog` 
	FOR EACH ROW BEGIN
	
		IF NEW.deleted THEN
			SET @changetype = 'DELETE';
		ELSE
			SET @changetype = 'NEW';
		END IF;
    
		INSERT INTO audit (blog_id, changetype) VALUES (NEW.id, @changetype);
		
    END$$
Posted by: Guest on April-14-2020
2

trigger in mysql

CREATE TRIGGER Product_Details_tr 
BEFORE INSERT ON Product_Details 
FOR EACH ROW 
SET NEW.User_ID = CURRENT_USER();
Posted by: Guest on March-11-2021

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