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How can a MySQL stored procedure call another MySQL stored procedure inside it?
It is quite possible that a MySQL stored procedure can call another MySQL stored procedure inside it. To demonstrate it, we are taking an example in which a stored procedure will call another stored procedure to find out the last_insert_id.
Example
mysql> Create table employee.tbl(Id INT NOT NULL AUTO_INCREMENT, Name Varchar(30) NOT NULL, PRIMARY KEY(id))//
Query OK, 0 rows affected (3.87 sec)
mysql> Create Procedure insert1()
-> BEGIN insert into employee.tbl(name) values ('Ram');
-> END//
Query OK, 0 rows affected (0.10 sec)Now, in the next procedure insert2() we will call the 1st stored procedure i.e. insert1().
mysql> Create Procedure insert2() -> BEGIN -> CALL insert1(); -> Select last_insert_id(); -> END // Query OK, 0 rows affected (0.11 sec) mysql> Delimiter ; mysql> Call insert2(); +------------------+ | last_insert_id() | +------------------+ | 1 | +------------------+ 1 row in set (0.36 sec) Query OK, 0 rows affected (0.37 sec)
The above result set shows that when we call insert1() then it inserted the first value in the table called employee.tbl and when we select last_insert_id() in 2nd stored procedure i.e. insert2() then it gives the output 1.
Updated on 22-Jun-2020 06:48:26
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