各用戶的打開游標總數 SELECT A.USER_NAME, COUNT(*) FROM V$OPEN_CURSOR A GROUP BY A.USER_NAME;?

查找數據庫各用戶各個終端的緩存游標數 SELECT AA.USERNAME, AA.MACHINE, SUM(AA.VALUE) FROM ( SELECT A.VALUE, S.MACHINE, S.USERNAME FROM V$SESSTAT A, V$STATNAME B, V$SESSION S WHERE A.STATISTIC# = B.STATISTIC# AND S.SID = A.SID AND B.NAME = 'session cursor cache count') AA GROUP BY AA.USERNAME, AA.MACHINE ORDER BY AA.USERNAME, AA.MACHINE;

查找數據庫各用戶各個終端的打開游標數 SELECT AA.USERNAME, AA.MACHINE, SUM(AA.VALUE) FROM ( SELECT A.VALUE, S.MACHINE, S.USERNAME FROM V$SESSTAT A, V$STATNAME B, V$SESSION S WHERE A.STATISTIC# = B.STATISTIC# AND S.SID = A.SID AND B.NAME = 'opened cursors current') AA GROUP BY AA.USERNAME, AA.MACHINE ORDER BY AA.USERNAME, AA.MACHINE;

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查看游標使用情況 select o.sid, osuser, machine,o.sql_id,o.sql_text,o.cursor_type, count(*) num_curs from v$open_cursor o, v$session s where user_name like 'BIM%' and o.sid = s.sid group by o.sid, osuser, machine,o.sql_id,o.sql_text,o.cursor_type order by num_curs desc;

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查看當前打開的游標數目 select count(*) from v$open_cursor; 查看緩存游標數目 show parameter session_cached_cursorSELECT 'session_cached_cursors' PARAMETER,LPAD(VALUE, 5) VALUE,DECODE(VALUE, 0, ' n/a', TO_CHAR(100 * USED / VALUE, '990') || '%') USAGEFROM (SELECT MAX(S.VALUE) USEDFROM V$STATNAME N, V$SESSTAT SWHERE N.NAME = 'session cursor cache count'AND S.STATISTIC# = N.STATISTIC#),(SELECT VALUE FROM V$PARAMETER WHERE NAME = 'session_cached_cursors')UNION ALLSELECT 'open_cursors',LPAD(VALUE, 5),TO_CHAR(100 * USED / VALUE, '990') || '%'FROM (SELECT MAX(SUM(S.VALUE)) USEDFROM V$STATNAME N, V$SESSTAT SWHERE N.NAME IN('opened cursors current', 'session cursor cache count')AND S.STATISTIC# = N.STATISTIC#GROUP BY S.SID),(SELECT VALUE FROM V$PARAMETER WHERE NAME = 'open_cursors'); SQL> SELECT 'session_cached_cursors' PARAMETER,LPAD(VALUE, 5) VALUE,DECODE(VALUE, 0, ' n/a', TO_CHAR(100 * USED / VALUE, '990') || '%') USAGEFROM (SELECT MAX(S.VALUE) USEDFROM V$STATNAME N, V$SESSTAT SWHERE N.NAME = 'session cursor cache count'AND S.STATISTIC# = N.STATISTIC#),(SELECT VALUE FROM V$PARAMETER WHERE NAME = 'session_cached_cursors')UNION ALLSELECT 'open_cursors',LPAD(VALUE, 5),TO_CHAR 2 3 4 5 6 7 8 9 10 11 12 (100 * USED / VALUE, '990') || '%'FROM (SELECT MAX(SUM(S.VALUE)) USEDFROM V$STATNAME N, V$SESSTAT SWHERE N.NAME IN('opened cursors current', 'session cursor cache count')AND S.STATISTIC# = N.STA 13 14 15 16 17 TISTIC#GROUP BY S.SID),(SELECT VALUE FROM V$PARAMETER WHERE NAME = 'open_cursors'); 18 19 PARAMETER VALUE USAGE ---------------------- -------------------- ----- session_cached_cursors 50 100% open_cursors 300 18%SQL> 查詢游標使用排名select SID,count(*) from v$open_cursor O WHERE O.user_name like 'BIM%' GROUP BY O.SID ORDER BY 2 DESC; ----查詢游標使用情況以及游標最大數---- SELECT MAX(A.VALUE) AS HIGHEST_OPEN_CUR, P.VALUE AS MAX_OPEN_CUR FROM V$SESSTAT A, V$STATNAME B, V$PARAMETER P WHERE A.STATISTIC# = B.STATISTIC# AND B.NAME = 'opened cursors current' AND P.NAME = 'open_cursors' GROUP BY P.VALUE;

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