Oracle查询常用SQL
查询所有定时任务
SELECT * FROM ALL_JOBS;SQL被阻塞查询
SELECT '节点 ' || A.INST_ID || ' SESSION ' || A.SID || ',' || A_S.SERIAL# ||
' 阻塞了 节点 ' || B.INST_ID || ' SESSION ' || B.SID || ',' || B_S.SERIAL# BLOCKINFO,
A.INST_ID,
A_S.SID,
A_S.SCHEMANAME,
A_S.MODULE,
A_S.STATUS,
A.TYPE LOCK_TYPE,
A.ID1,
A.ID2,
DECODE(A.LMODE,
0,
'NONE',
1,
NULL,
2,
'ROW-S (SS)',
3,
'ROW-X (SX)',
4,
'SHARE (S)',
5,
'S/ROW-X (SSX)',
6,
'EXCLUSIVE (X)') LOCK_MODE,
'后为被阻塞信息' ,
B.INST_ID BLOCKED_INST_ID,
B_S.SID BLOCKED_SID,
B.TYPE BLOCKED_LOCK_TYPE,
DECODE(B.REQUEST,
0,
'NONE',
1,
NULL,
2,
'ROW-S (SS)',
3,
'ROW-X (SX)',
4,
'SHARE (S)',
5,
'S/ROW-X (SSX)',
6,
'EXCLUSIVE (X)') BLOCKED_LOCK_REQUEST,
B_S.SCHEMANAME BLOCKED_SCHEMANAME,
B_S.MODULE BLOCKED_MODULE,
B_S.STATUS BLOCKED_STATUS,
B_S.SQL_ID BLOCKED_SQL_ID,
OBJ.OWNER BLOCKED_OWNER,
OBJ.OBJECT_NAME BLOCKED_OBJECT_NAME,
OBJ.OBJECT_TYPE BLOCKED_OBJECT_TYPE,
CASE
WHEN B_S.ROW_WAIT_OBJ# <> -1 THEN
DBMS_ROWID.ROWID_CREATE(1,
OBJ.DATA_OBJECT_ID,
B_S.ROW_WAIT_FILE#,
B_S.ROW_WAIT_BLOCK#,
B_S.ROW_WAIT_ROW#)
ELSE
'-1'
END BLOCKED_ROWID, --THE BLOCKED ROWID
DECODE(OBJ.OBJECT_TYPE,
'TABLE',
'SELECT * FROM ' || OBJ.OWNER || '.' || OBJ.OBJECT_NAME ||
' WHERE ROWID=''' ||
DBMS_ROWID.ROWID_CREATE(1,
OBJ.DATA_OBJECT_ID,
B_S.ROW_WAIT_FILE#,
B_S.ROW_WAIT_BLOCK#,
B_S.ROW_WAIT_ROW#) || '''',
NULL) BLOCKED_DATA_QUERYSQL
FROM GV$LOCK A,
GV$LOCK B,
GV$SESSION A_S,
GV$SESSION B_S,
DBA_OBJECTS OBJ
WHERE A.ID1 = B.ID1
AND A.ID2 = B.ID2
AND A.BLOCK > 0 --BLOCK THE OTHER SQL
AND B.REQUEST > 0
AND ((A.INST_ID = B.INST_ID AND A.SID <> B.SID) OR
(A.INST_ID <> B.INST_ID))
AND A.SID = A_S.SID
AND A.INST_ID = A_S.INST_ID
AND B.SID = B_S.SID
AND B.INST_ID = B_S.INST_ID
AND B_S.ROW_WAIT_OBJ# = OBJ.OBJECT_ID(+)
ORDER BY A.INST_ID,A.SID;表的所有外键约束
SELECT /*+RULE*/ D.CONSTRAINT_NAME PK_NAME,
D.TABLE_NAME
|| '.'
|| D.COLUMN_NAME PK_COLUMN,
A.CONSTRAINT_TYPE,
B.CONSTRAINT_NAME FK_NAME,
B.TABLE_NAME
|| '.'
|| B.COLUMN_NAME FK_COLUMN
FROM DBA_CONSTRAINTS A
JOIN DBA_CONS_COLUMNS B
ON A.CONSTRAINT_NAME = B.CONSTRAINT_NAME
AND A.OWNER = B.OWNER
JOIN DBA_CONSTRAINTS C
ON A.R_CONSTRAINT_NAME = C.CONSTRAINT_NAME
AND A.R_OWNER = C.OWNER
JOIN DBA_CONS_COLUMNS D
ON C.CONSTRAINT_NAME = D.CONSTRAINT_NAME
AND C.OWNER = D.OWNER
WHERE D.TABLE_NAME = 'INV_LOCATION_PALLETS'或者
SELECT * FROM DBA_CONSTRAINTS WHERE R_CONSTRAINT_NAME='PK_INV_LOCATION_PALLETS'某表的触发器查询
SELECT * FROM DBA_TRIGGERS WHERE TABLE_NAME='INV_LOCATION_PALLETS'其它推荐：
Delete the data on the table very slow(删除数据慢)
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