SELECT plan_hash_value, COUNT (*)
FROM vsqlWHEREplanhashvalue0GROUPBYplanhashvalueORDERBY2DESC;SELECT∗FROMvsql
WHERE plan_hash_value = &b
FROM vsqlWHEREplanhashvalue0GROUPBYplanhashvalueORDERBY2DESC;SELECT∗FROMvsql
WHERE plan_hash_value = &b