常用Oracle SQL

1.删除所有的表

create or replace PROCEDURE SP_DROPTABLE

(v_begintime in varchar2,    v_endtime in varchar2)

 as

  v_tablename varchar2(256);

  cursor cur_tablename is       select object_name       from user_objects      where object_type = ‘TABLE‘        and to_char(CREATED, ‘yyyy-mm-dd‘)                      between v_begintime                      and v_endtime      order by CREATED desc;

begin

  open cur_tablename;

  loop       fetch cur_tablename       into v_tablename;       exit when cur_tablename%notfound;       execute immediate ‘drop table ‘ || v_tablename || ‘‘;     end loop;

  close cur_tablename;

end sp_droptable;

---------------------------------------------------------- begin

SP_DROPTABLE(‘1900-01-01‘,‘2014-12-31‘);

end;

2.Oracle查询锁表信息并结束进程.

  --Oracle查询锁表信息并结束进程

SELECT A.OWNER 方案名, A.OBJECT_NAME 表名, B.XIDUSN 回滚段号, B.XIDSLOT 槽号, B.XIDSQN 序列号, B.SESSION_ID 锁表SESSION_ID, B.ORACLE_USERNAME 锁表用户名, decode(D.type,‘XR‘,‘NULL‘,‘RS‘,‘SS(Row-S)‘,‘CF‘,‘SS(Row-S)‘, ‘TM‘, ‘TABLE LOCK‘, ‘PW‘, ‘TABLE LOCK‘, ‘TO‘, ‘TABLE LOCK‘, ‘TS‘, ‘TABLE LOCK‘, ‘RT‘, ‘ROW LOCK‘, ‘TX‘, ‘ROW LOCK‘,‘MR‘,‘S(Share)‘,NULL) 锁定方式, C.MACHINE 用户组, C.TERMINAL 机器名, B.OS_USER_NAME 系统用户名, B.PROCESS 系统进程id, DECODE(C.STATUS,‘INACTIVE‘,‘不活动‘,‘ACTIVE‘,‘活动‘) 活动情况 , C.SERVER, C.SID, C.SERIAL#, C.PROGRAM 连接方式, C.LOGON_TIME FROM ALL_OBJECTS A, V$LOCKED_OBJECT B, SYS.GV_$SESSION C, v$lock d WHERE ( A.OBJECT_ID = B.OBJECT_ID ) AND (B.PROCESS = C.PROCESS ) and C.sid = d.sid and B.LOCKED_MODE = D.LMODE ORDER BY 1,2;

alter system kill session ‘50, 3436‘; 139 : sid 182 : sertal#

3. 数据库导入导出

exp gdaphp/[email protected]/fruitshop file=D:\ExportData\gdaphp20130701.dmp