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connection和session的关系
1.官方解释：1.1 connection: A connection is a physical path from a client to an Oracle instance. A connection is established either over a network or over an IPC mechanism. A connection is typically between a client process and either a dedicated server or a dispatcher. However,using Oracle’s Connection Manager (CMAN), a connection may be between a client and CMAN, and CMAN and the database. 1.2 sessionA session is a logical entity that exists in the instance. It is your session state, or a col
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startup myblog
D:>sqlplus /nologSQL*Plus: Release 10.2.0.1.0 - Production on 星期四 6月 19 08:56:00 2008Copyright (c) 1982, 2005, Oracle. All rights reserved.SQL> conn jlttt/superman as sysdba已连接。SQL> startupORACLE 例程已经启动。Total System Global Area 289406976 bytesFixed Size 1248576 bytesVariable Size 79692480 bytesDatabase Buffers 201326592 bytesRedo Buffers 7139328 bytesjlttt blog装载完毕。jlttt blog已经打开。SQL> show parameter blog_nameNAME TYPE VALUE------------------------------------
