重装ORACLE816后，MIGRATION 原先的数据库时出错

[kevin_w]

提示：
ORA-03114:NOT CONNECTED TO ORACLE

请问是什么原因？
多谢！！！！！！

[skytears]

在重装oracle之前，你先把数据文件，控制文件，参数文件等都备份一下。
重装完后，按原先的脚本再建一遍数据库，关闭数据库。
然后把对应的数据文件覆盖回去。
打开数据库，一般没问题，有时数据库不自动打开，原因可能是你覆盖前
没有shutdown数据库，可以手工打开。

[LGQDUCKY]

ORA-03114 not connected to ORACLE

Cause: A call to Oracle was attempted when no connection was established. Usually this
happens because a user-written program has not logged on. It may happen if communication
trouble causes a disconnection. In addition, this message could occur when ALTER SYSTEM
KILL SESSION or ALTER SYSTEM DISCONNECT SESSION were issued with the IMMEDIATE qualifier
because, in those cases, the client's connection to the database is terminated without
waiting for the client to issue a request.

Action: Try again. If the message recurs and the program is user written, check the
program.

[LGQDUCKY]

重装ORACLE816后，MIGRATION 原先的数据库时出错:?
你原来有数据库吗？那你是怎么装的呢？说出你的步骤，让
大家来分析。。。。。