通過微軟的報表服務器訪問Oracle，做好一張報表，爲了偷懶，直接在數據庫建立了一個視圖，然後顯示就行了。結果測試時報ORA-600 [qks3tinit]。登陸到本機一運行，沒問題啊。懷疑是微軟報表服務器連接Oracle的接口有問題。但是其他幾個類似視圖又都沒問題。於是檢測SQL：
SELECT (CASE
WHEN fjname IS NULL
THEN '全局'
ELSE fjname
END) fjname,
(CASE
WHEN stat_type IS NULL
THEN '總計'
ELSE stat_type
END) stat_type,
(CASE
WHEN cust_type_old IS NULL
THEN '總計'
ELSE cust_type_old
END
) cust_type_old,
cnt, curr_user
FROM (SELECT fjname, stat_type, cust_type_old, COUNT (*) cnt, SUM(CASE state WHEN '正常' THEN 1 ELSE 0 END) curr_user
FROM tmp_tj0507001
WHERE fjname IS NOT NULL
GROUP BY grouping sets(rollup(fjname, stat_type, cust_type_old), rollup(stat_type, cust_type_old)))
ORDER BY fjname, stat_type, cust_type_old;
執行計劃：
SELECT STATEMENT, GOAL = HINT: ALL_ROWS Cost=10 Cardinality=15 Bytes=780
SORT ORDER BY Cost=10 Cardinality=15 Bytes=780
VIEW Object owner=YAOYP Cost=8 Cardinality=15 Bytes=780
TEMP TABLE TRANSFORMATION
VIEW Object owner=YAOYP Cost=8 Cardinality=4 Bytes=208
VIEW Object owner=YAOYP Cost=8 Cardinality=4 Bytes=208
UNION-ALL
TABLE ACCESS FULL Object owner=SYS Object name=SYS_TEMP_0FD9D668F_9A864B59 Cost=2 Cardinality=1 Bytes=52
TABLE ACCESS FULL Object owner=SYS Object name=SYS_TEMP_0FD9D6690_9A864B59 Cost=2 Cardinality=1 Bytes=52
TABLE ACCESS FULL Object owner=SYS Object name=SYS_TEMP_0FD9D6691_9A864B59 Cost=2 Cardinality=1 Bytes=52
TABLE ACCESS FULL Object owner=SYS Object name=SYS_TEMP_0FD9D6691_9A864B59 Cost=2 Cardinality=1 Bytes=52
RECURSIVE EXECUTION Object name=SYS_LE_7_0
RECURSIVE EXECUTION Object name=SYS_LE_7_1
RECURSIVE EXECUTION Object name=SYS_LE_7_2
RECURSIVE EXECUTION Object name=SYS_LE_7_3
就看到一個TEMP TABLE TRANSFORMATION，這個比較少見哦。另外一個類似SQL：
SELECT (CASE
WHEN fjname IS NULL
THEN '全局'
ELSE fjname
END) fjname,
(CASE
WHEN cust_type IS NULL
THEN '總計'
ELSE cust_type
END
) cust_type,
curr_user
FROM (SELECT fjname, (CASE WHEN cust_type IS NULL THEN '公免等' ELSE cust_type END) cust_type,
SUM(CASE state WHEN '正常' THEN 1 ELSE 0 END) curr_user
FROM tmp_tj0507001
WHERE fjname IS NOT NULL AND state = '正常'
GROUP BY ROLLUP (fjname, (CASE WHEN cust_type IS NULL THEN '公免等' ELSE cust_type END)))
ORDER BY fjname, cust_type;
執行計劃：
SELECT STATEMENT, GOAL = CHOOSE Cost=3021 Cardinality=43 Bytes=1376
SORT ORDER BY Cost=3021 Cardinality=43 Bytes=1376
VIEW Object owner=YAOYP Cost=3020 Cardinality=43 Bytes=1376
SORT GROUP BY ROLLUP Cost=3020 Cardinality=43 Bytes=989
INDEX FAST FULL SCAN Object owner=YAOYP Object name=SYS_IOT_TOP_62350 Cost=367 Cardinality=1132418 Bytes=26045614
沒有TEMP TABLE TRANSFORMATION了。看來要避免這個執行路徑，想了半天也沒辦法，開始還懷疑是參數STAR_TRANSFORMATION_ENABLED問題，後來一看是FALSE的。只能到Metalink上找了，結果又是一個Bug，最近簡直是一出問題就是Bug，以前怎麼就不覺得呢？
文檔 ID: 註釋:2836690.8
主題: Support Description of Bug 2836690
類型: PATCH
狀態: PUBLISHED
內容類型: TEXT/X-HTML
創建日期: 08-AUG-2003
上次修訂日期: 14-AUG-2003
Click here for details of sections in this note.
Bug 2836690 ROLLUP over DBLINK may fail with OERI:qks3tinit
This note gives a brief overview of bug 2836690.
Affects:
Product (Component) Oracle Server (RDBMS)
Range of versions believed to be affected Versions >= 9 but < 10G
Versions confirmed as being affected
* 9.2.0.3
Platforms affected Generic (all / most platforms affected)
Fixed:
This issue is fixed in
* 9.2.0.4 (Server Patch Set)
* 10G Production Base Release
Symptoms:
* Internal Error may occur (ORA-600)
* ORA-600 [qks3tinit]
Related To:
* DB-Link / Distributed
* Analytic SQL (Windowing etc..)
Description
ORA-600 [qks3tinit] possible from queries using ROLLUP which reference
remote objects.
The full bug text (if published) can be seen at <Bug:2836690>
This link will not work for UNPUBLISHED bugs.
類似還有一個Bug：
文檔 ID: 註釋:2419335.8
主題: Support Description of Bug 2419335
類型: PATCH
狀態: PUBLISHED
內容類型: TEXT/X-HTML
創建日期: 08-AUG-2003
上次修訂日期: 14-AUG-2003
Click here for details of sections in this note.
Bug 2419335 OERI:[qks3tInit] possible from STAR transformation
This note gives a brief overview of bug 2419335.
Affects:
Product (Component) Oracle Server (RDBMS)
Range of versions believed to be affected Versions >= 9.2 but < 10G
Versions confirmed as being affected
* 9.2.0.3
Platforms affected Generic (all / most platforms affected)
Fixed:
This issue is fixed in
* 9.2.0.4 (Server Patch Set)
* 10G Production Base Release
Symptoms:
* Internal Error may occur (ORA-600)
* ORA-600 [qks3tInit]
Related To:
* DB-Link / Distributed
* Star Transformation
Description
ORA-600 [qks3tInit] possible from star transformation query
where all the tables are remote (ie: over a dblink)
Workaround:
Set star_transformation_enabled = false at the remote DB.
The full bug text (if published) can be seen at <Bug:2419335>
This link will not work for UNPUBLISHED bugs.
不過我還是覺得是TEMP TABLE TRANSFORMATION問題，沒理由第2個SQL裏的ROLLUP就沒問題哦。唉，放棄ROLLUP咯。關於上面這個執行路徑資料好少，有辦法避免麼？