oracle命令操作
‘开始’-->‘运行’--> 输入‘cmd’ 打开cmd.exe -->输入‘cd c:\’ 切换到 c:\>
启动Oracle
c:\> svrmgrl
svrmgrl> connect internal/oracle
svrmgrl> startup
svrmgrl> exit
启动监听器
c:\> lsnrctl start
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什么是合并多行字符串（连接字符串）呢，例如：
SQL> desc test;
Name Type Nullable Default Comments
------- ------------ -------- ------- --------
COUNTRY VARCHAR2(20) Y &nb ......
Exam Number/Code : 1z0-047
Exam Name : Oracle Database SQL Expert
Questions and Answers : 278 Q&As
Update Time: 2010-04-15
1. Which two statements are true regarding the execution of the correlated subqueries? (Choose two.)
A. The nested query executes after the outer query returns th ......
服务器启动的过程
Oracle数据服务器的常规启动过程:
1、启动TNS监听 C:\Documents and Settings\Administrator>lsnrctl start
......
http://hi.baidu.com/lu_xinzhong/blog/item/4ff92b1725dec505c83d6d09.html
回滚表空间大小
-- 创建一个新的小空间的UNDO TABLESPACE
Create UNDO TABLESPACE UNDOTBS2 DATAFILE '/u01/app/oracle/oradata/orcl/UNDOTBS02.DBF' SIZE 100M REUSE AUTOEXTEND ON;
-- 设置新的表空间为系统UNDO_TABLESPACE
Alter SYSTE ......
