How do I test mysql triggers and stored procedures
- 2020-05-14 05:07:03
- OfStack
1. To test the triggers and stored procedures, start with a simple table:
2. For the insert operation of the table, create a record table:
3. Write a trigger for an insert operation:
4. Write stored procedures for bulk inserts:
5. Call the stored procedure, verify that the stored procedure is working, and verify that the trigger is properly triggered before inserting the record:
6. Finally, verify again by inserting the record table:
CREATE TABLE `airuser` (
`userId` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(128) NOT NULL,
PRIMARY KEY (`userId`)
)ENGINE=InnoDB DEFAULT CHARSET=utf8
2. For the insert operation of the table, create a record table:
CREATE TABLE `airuser_record` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(45) DEFAULT NULL,
`edittime` timestamp NULL DEFAULT NULL,
`edittype` varchar(45) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
3. Write a trigger for an insert operation:
DROP TRIGGER insert_trigger;
delimiter |
CREATE TRIGGER insert_trigger BEFORE INSERT ON airuser
FOR EACH ROW BEGIN
INSERT INTO airuser_record SET username = NEW.username, edittime=now(), edittype='insert';
END;
SHOW TRIGGERS;
4. Write stored procedures for bulk inserts:
DROP procedure createUsers;
delimiter |
create procedure createUsers(IN count int)
begin
declare i int;
set i=0;
while i<count do
insert into airuser set username=concat('user_',i);
set i=i+1;
end while;
end;
show procedure status;
5. Call the stored procedure, verify that the stored procedure is working, and verify that the trigger is properly triggered before inserting the record:
call createUsers(10);
6. Finally, verify again by inserting the record table:
SELECT * FROM mars_jpa.airuser_record;