Why is my procedure producing null result? - mysql

Question

I have simply created procedure which take 2 inputs and give 2 outputs. When I run query separately it gives me proper output, But If I will try to call procedure It produce me null result
while calling Query:
SELECT field1, field2
INTO #var1, #var2
FROM MyTable ID=? and Name=?
and then :
select #var1, #var2;
But If I combine the same code in procedure it will give null for both fields.
Procedure:
DELIMITER $$
CREATE DEFINER=`user`#`localhost` PROCEDURE `My_Proc`(
IN `ID` INT,
IN `Name` VARCHAR(20)
-- OUT `result` INT,
-- OUT `result1` INT
)
BEGIN
set #var1 = 0;
set #var2 = 0;
set #query := CONCAT("SELECT
field1, field2
INTO #var1, #var2
FROM MyTable ID=? and Name=?");
PREPARE stmt FROM #query;
Execute stmt USING #Id,#Name;
DEALLOCATE PREPARE `stmt`;
select #var1,#var2;
END
I tried to call select #var1,#var2; outside procedure but it also give null fields.
I am working in Mysql Workbench 6.0

Answer 1

you have some mistakes in your procedure thats have been removed below..........have a look
DELIMITER $$
CREATE DEFINER=`user`#`localhost` PROCEDURE `My_Proc`(
IN `ID` INT,
IN `Name` VARCHAR(20)
-- OUT `result` INT,
-- OUT `result1` INT
)
BEGIN
set #var1 = 0;
set #var2 = 0;
set #query := CONCAT("SELECT
field1,field2
INTO #var1, #var2
FROM MyTable where ID=? and Name=?");
PREPARE stmt FROM #query;
Execute stmt USING #Id,#Name;
DEALLOCATE PREPARE stmt ;
select #var1,#var2;
END