MySQL存储过程返回错误结果

Question

I cannot work out what I am doing wrong. My tables has 1262717 rows.

I have this SQL:

SELECT count(hud_case_number) FROM suitecrm.ht_homes where hud_case_number = "abc"

Which correctly replies with 0

When I convert it to a stored procedure:

CREATE DEFINER=`root`@`%` PROCEDURE `hud_does_property_exist`(IN hud_case_number varchar(20))
BEGIN
SELECT count(hud_case_number) FROM suitecrm.ht_homes where hud_case_number = hud_case_number;
END

and call it like this:

Call hud_does_property_exist('abc')

It returns the answer 1262717

I just cannot see what I am doing wrong. I suspect it's something to do with the hud_case_number parameter?

Answer 1

Try This :-

CREATE DEFINER=`root`@`%` PROCEDURE `hud_does_property_exist`(IN 
in_hud_case_number varchar(20))
BEGIN
  SELECT count(hud_case_number) FROM suitecrm.ht_homes where hud_case_number = 
  in_hud_case_number;
END