查询oracle表空间
dc-test2<oracle>sqlplus /nolog
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Feb 25 19:23:35 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
SQL> desc v$datafile;
SP2-0640: Not connected
SP2-0641: "DESCRIBE" requires connection to server
SQL> conn / as sysdba
Connected.
SQL> desc v$datafile;
Name Null? Type
----------------------------------------- -------- ----------------------------
FILE# NUMBER
CREATION_CHANGE# NUMBER
CREATION_TIME DATE
TS# NUMBER
RFILE# &
相关文档：
connect by 是结构化查询中用到的，其基本语法是：
select ... from tablename start with 条件1
connect by 条件2
where 条件3;
例：
select * from table
start with org_id = 'HBHqfWGWPy'
connect by prior org_id = parent_id;
简单说来是将一个树状结构存储在一张表里，比如一个表中存在两个字� ......
5.调用函数FN_ADDONE
--------------------
SQL> SET SERVEROUTPUT ON
SQL> DECLARE CNUM NUMBER;
2 BEGIN
3 CNUM := USER1_ADB.FN_ADDONE(3);
4 DBMS_OUTPUT.PUT_LINE('CNUM = ' || CNUM);
5 END;
6&nbs ......
1、备份指定的表空间
首先，你要确认自己电脑上有exp.exe这个东东，才能进行备份工作。
我想要备份的是用户名为cyy的表空间，备份文件打算放在D盘，并以backup_oracle.dmp命名，顺便把日志文件也备份一下好了。
在命令行敲入：
C:\Documents and Settings\Administrator>exp cyy/cyy@bsrs file=D:\backup_oracle.dmp ......
An introduction to Mutexes in 10gR2
By Connie Green, Kumar Rajamani
from meetings with: Kumar Rajamani, Russell Green, Saureen Shah, Cecilia Gervasio and Connie Green
Introduction
This paper is intended as an introduction to mutexes. It describes new concepts associated with mutexes, when ......
每天1点执行的oracle JOB样例
DECLARE
X NUMBER;
BEGIN
SYS.DBMS_JOB.SUBMIT
( job => X,
what => 'ETL_RUN_D_Date;',
next_date => to_date('2009-08-26 01:00:00','yyyy-mm-dd hh24:mi:ss'),
interval => 'trunc(sysdate)+1+1/24',
no_parse => FALSE
);
SYS.DBMS_OUTPUT.PUT_LINE('Job Number ......
