Esengnet的专栏

drop database link testdb_DBLINK / create database link testdb_DBLINK connect to user identified by password USING '(DESCRIPTION =     (ADDRESS_LIST =       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.

1. export data from db    exp developer/welcome@david file=d:\exp.dmp       exp PRPCAPPD1/welcome@aa file=d:\PRPCAPPD1.dmp owner=PRPCAPPD1 log=d:\PRPCAPPD1.log    exp SPRAPPD1/welcome@aafile=d:

ORACLE日期时间函数大全    TO_DATE格式(以时间:2007-11-02   13:45:25为例)            Year:              yy two digits 两位年                显示值:07         yyy three digits 三位年                显示值:007         yyyy

select t2.username,t2.sid,t2.serial#,t2.logon_time from v$locked_object t1,v$session t2 where t1.session_id=t2.sid order by t2.logon_time; alter system kill session '547,6096' immediate;