檢視未繫結變數的sql

摘抄
WITH c AS
 (SELECT FORCE_MATCHING_SIGNATURE, COUNT(*) cnt
    FROM v$sqlarea
   WHERE FORCE_MATCHING_SIGNATURE != 0
   GROUP BY FORCE_MATCHING_SIGNATURE
  HAVING COUNT(*) > 20),
sq AS
 (SELECT sql_id,
         FORCE_MATCHING_SIGNATURE,
         row_number() over(partition BY FORCE_MATCHING_SIGNATURE ORDER BY sql_id DESC) p
    FROM v$sqlarea s
   WHERE FORCE_MATCHING_SIGNATURE IN
         (SELECT FORCE_MATCHING_SIGNATURE FROM c))
SELECT sq.sql_id, sq.FORCE_MATCHING_SIGNATURE, c.cnt "unshared count"
  FROM c, sq
 WHERE sq.FORCE_MATCHING_SIGNATURE = c.FORCE_MATCHING_SIGNATURE
   AND sq.p = 1
 ORDER BY c.cnt DESC

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