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MySQL trigger to insert row into another table?
Let us first create a table. The CREATE command is used to create a table.
mysql> create table Table1 -> ( -> id int, -> name varchar(100) -> ); Query OK, 0 rows affected (0.62 sec)
Let us now create another table.
mysql> create table Table2 -> ( -> id int, -> name varchar(100) -> ); Query OK, 0 rows affected (0.49 sec)
Now, the following is how you can create a trigger.
mysql> delimiter # mysql> create trigger Table1Trigger after insert on Table1 -> for each row -> begin -> insert into Table2(id, name) values (new.id, new.name); -> end# Query OK, 0 rows affected (0.29 sec) mysql> delimiter ;
To create a trigger, we need to change the delimiter.
Inserting the row into Table1 activates the trigger and inserts the records into Table2. To insert record in Table1.
mysql> insert into Table1 values(1,'John'),(2,'Smith'),(3,'Carol'); Query OK, 3 rows affected (0.28 sec) Records: 3 Duplicates: 0 Warnings: 0
To check if the records are inserted in both tables or not.
mysql> select *from Table1;
Here is the output that shows record inserted successfully in Table1.
+------+-------+ | id | name | +------+-------+ | 1 | John | | 2 | Smith | | 3 | Carol | +------+-------+ 3 rows in set (0.00 sec)
To check for second table.
mysql> select *from Table2;
The following is the output that shows record inserted successfully in Table2.
+------+-------+ | id | name | +------+-------+ | 1 | John | | 2 | Smith | | 3 | Carol | +------+-------+ 3 rows in set (0.00 sec)
Updated on: 30-Jul-2019
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