Implement DELETE query in MySQL stored procedure

You can use stored procedure and can pass the value via parameter. Let us first create a table −

mysql> create table DemoTable1464    -> (    -> Id int,    -> FirstName varchar(20)    -> ); Query OK, 0 rows affected (0.51 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable1464 values(101,'Chris Brown'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable1464 values(102,'John Doe'); Query OK, 1 row affected (0.09 sec)

Display all records from the table using select statement −

mysql> select * from DemoTable1464;

This will produce the following output −

+------+-------------+ | Id   | FirstName   | +------+-------------+ |  101 | Chris Brown | |  102 | John Doe    | +------+-------------+ 2 rows in set (0.00 sec)

Here is the query to implement delete query in stored procedure −

mysql> DELIMITER // mysql> CREATE PROCEDURE delete_demo(IN local_Id int, IN local_Name varchar(20))    -> BEGIN    ->    delete from DemoTable1464    ->    where Id=local_Id and    ->      FirstName=local_Name;    -> END // Query OK, 0 rows affected (0.24 sec) mysql> DELIMITER ;

Now you can call the stored procedure using CALL command −

mysql> call delete_demo(102,'John Doe'); Query OK, 1 row affected, 1 warning (0.11 sec)

Let us check the table records once again −

mysql> select * from DemoTable1464;

This will produce the following output −

+------+-------------+ | Id   | FirstName   | +------+-------------+ |  101 | Chris Brown | +------+-------------+ 1 row in set (0.00 sec)