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How to display message from a stored procedure?
To display message from stored procedure on the basis of conditions, let us use IF-ELSE condition −
mysql> DELIMITER // mysql> CREATE PROCEDURE showMessage(value int,Name varchar(20)) BEGIN IF(value > 100) then SELECT CONCAT("HELLO"," ",Name); ELSE SELECT CONCAT("BYE"," ",Name); END IF; END // Query OK, 0 rows affected (0.18 sec) mysql> DELIMITER ;
Case 1 − Call the stored procedure using CALL command, when value is more than 100 −
call showMessage(200,'John');
This will produce the following output −
+--------------------------+ | CONCAT("HELLO"," ",Name) | +--------------------------+ | HELLO John | +--------------------------+ 1 row in set (0.00 sec) Query OK, 0 rows affected, 1 warning (0.02 sec)
Case 2 − When the value is less than 100, a difference message will be visible since ELSE condition will execute −
mysql> call showMessage(10,'John');
This will produce the following output −
+------------------------+ | CONCAT("BYE"," ",Name) | +------------------------+ | BYE John | +------------------------+ 1 row in set (0.00 sec) Query OK, 0 rows affected (0.01 sec)
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