[DB][ORACLE]数据库活动游标数查询SQL

SELECT ALLCURSOR 所有游标,
MYALLCURSOR 我的游标数,
MYOPENCURSOR 我打开游标数,
MYCACHECURSOR 我SESSION缓存游标数,
(MYALLCURSOR - MYOPENCURSOR - MYCACHECURSOR) 我的其他游标数
FROM (SELECT (SELECT COUNT(*) FROM V$OPEN_CURSOR A) ALLCURSOR,
(SELECT COUNT(*)
FROM V$OPEN_CURSOR A
WHERE A.USER_NAME = 'TELSOFT_R_01') MYALLCURSOR,
(SELECT SUM(AA.VALUE)
FROM (SELECT A.VALUE
FROM V$SESSTAT A, V$STATNAME B, V$SESSION S
WHERE A.STATISTIC# = B.STATISTIC#
AND S.SID = A.SID
AND B.NAME = 'session cursor cache count'
AND S.USERNAME = 'TELSOFT_R_01') AA) MYCACHECURSOR,
(SELECT SUM(AA.VALUE)
FROM (SELECT A.VALUE
FROM V$SESSTAT A, V$STATNAME B, V$SESSION S
WHERE A.STATISTIC# = B.STATISTIC#
AND S.SID = A.SID
AND B.NAME = 'opened cursors current'
AND S.USERNAME = 'TELSOFT_R_01') AA) MYOPENCURSOR
FROM DUAL);

--查找各用户的打开游标总数（含缓存游标）
SELECT A.USER_NAME, COUNT(*) 各用户的打开游标总数
FROM V$OPEN_CURSOR A
GROUP BY A.USER_NAME;

--查找数据库各用户各个终端的缓存游标数
SELECT AA.USERNAME, AA.MACHINE, SUM(AA.VALUE) 缓存游标数
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;

--查找数据库各用户各个终端的打开游标数
SELECT AA.USERNAME, AA.MACHINE, SUM(AA.VALUE) 打开游标数
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;