Prepared Statement query syntax error - mysql

Question

Please can anyone tell me why this stored procedure is not working , what am I doing wrong.It keeps giving syntax error.
puserid and plimit are the parameters passed in the procedure.
DECLARE uid BIGINT;
DECLARE rangee TINYINT;
SET #uid = puserid;
SET #rangee = plimit * 15;
PREPARE STMT FROM
'IF((SELECT count(type) from notificationrecievers nr where
nr.status=0 and nr.recieverid=?) = 0) THEN
select nr.type,n.senderid,n.postid,u.name,nr.status
from
user u,notifications n,notificationrecievers nr where
nr.recieverid=? and u.userid=n.senderid and
nr.notificationid=n.notid order by n.notid desc
limit 15 OFFSET ?;
ELSE
select nr.type,n.senderid,n.postid,u.name,nr.status
from
user u,notifications n,notificationrecievers nr where
nr.recieverid=? and u.userid=n.senderid and nr.status=0 and
nr.notificationid=n.notid order by n.notid desc;
END IF;';
EXECUTE STMT USING #uid,#uid,#rangee,#uid;
Here's the error that i get.
Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IF((SELECT count(type) from notificationrecievers nr where nr.status=0 and nr.r' at line 1

Answer 1

You can use only DML in prepared statements.
You can do something like this
IF condition THEN
set #q = 'your query text'
ELSE
set #q = 'another query'
END IF;
PREPARE stmt FROM #q
EXECUTE stmt using ...
DEALLOCATE PREPARE stmt
You can execute some queries before to evaluate your conditions.
Hope it helps