oracle中如何快速找出未使用绑定变量的sql语句？

with force_mathces as (select l.force_matching_signature mathces, max(l.sql_id || l.child_number) max_sql_child, dense_rank() over(order by count(*) desc) ranking from v$sql l where l.force_matching_signature &lt;> 0 and l.parsing_schema_name &lt;> 'SYS' group by l.force_matching_signature having count(*) > 10) select v.sql_id, v.sql_text, v.parsing_schema_name, fm.mathces, fm.ranking from force_mathces fm, v$sql v where fm.max_sql_child = (v.sql_id || v.child_number) and fm.ranking <= 15 order by fm.ranking;