用於存放常用SQL
--查詢主鍵在哪一列 set pagesize 20 --設置頁大小 set linesize 120 --設置行大小 col COLUMN_NAME for a20 --設置字段顯示長度 col TABLE_NAME for a20 col OWNER for a20 col CONSTRAINT_NAME for a20 select cons.owner,cons.constraint_name,cons.table_name,cons.column_name from all_cons_columns cons,all_constraints ints where cons.constraint_name = ints.constraint_name and ints.table_name='TABLE_NAME' and ints.constraint_type='P'; --查看被鎖的表 select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id; --查看那個用戶那個進程照成死鎖 select b.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b where a.session_id = b.sid order by b.logon_time; --查看連接的進程 SELECT sid, serial#, username, osuser FROM v$session; --3.查出鎖定表的sid, serial#,os_user_name, machine_name, terminal,鎖的type,mode SELECT s.sid, s.serial#, s.username, s.schemaname, s.osuser, s.process, s.machine, s.terminal, s.logon_time, l.type FROM v$session s, v$lock l WHERE s.sid = l.sid AND s.username IS NOT NULL ORDER BY sid; /*這個語句將查找到數據庫中所有的DML語句產生的鎖,還可以發現, 任何DML語句其實產生了兩個鎖,一個是表鎖,一個是行鎖。*/ --殺掉進程 sid,serial# alter system kill session'210,11562';
