目標:將80數據庫導入到245
整個步驟:
1.從80上導出數據庫爲文件epsiii.dmp
[oracle@localhost ~]$ exp system/blcgebnew owner=epsiii direct=y constraints=y indexes=y file=dump/epsiii.dmp
2.245上取80的文件(傳輸文件)
首先生成密匙在80和245之間,這樣執行scp的時候就不用再輸入用戶名和密碼
(1)在245上執行:
[oracle@localhost ~]$ ssh-keygen -b 1024 -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase): <-- 直接輸入回車
Enter same passphrase again: <-- 直接輸入回車
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
49:9c:8a:8f:bc:19:5e:8c:c0:10:d3:15:60:a3:32:1c oracle@245
(2)將公鑰證書id_rsa.pub複製到機器80的oracle目錄的.ssh子目錄中,同時將文件名更換爲authorized_keys。
[oracle@outer_proj ~]$ scp -p .ssh/id_rsa.pub oracle@***.**.**.80:/home/oracle/.ssh/authorized_keys
oracle@***.**.**.80's password: <-- 輸入機器Server的oracle用戶密碼
id_rsa.pub 100% |**************************| 218 00:00
以上的只在第一次執行,之後都可以不用輸入用戶和密碼進行傳輸了
[oracle@outer_proj ~]$ scp oracle@**.**.**.80:/home/oracle/dump/epsiii.dmp /opt/dump
3.245上執行對數據庫操作的腳本
以下實現了連接數據庫以及sql語句操作,最重要的地方是一次執行完畢,不用在執行期間輸入用戶和密碼,不是交互式的.是寫這個的重點和難點.
[oracle@outer_proj bin]$ vi sql.sh
#!/bin/sh
sqlplus /nolog <<EOF
conn /as sysdba;
drop user ebnewmt cascade;
create user EBNEWMT identified by "ebnewmt123" default tablespace EBNEWMT temporary tablespace TEMP profile DEFAULT;
grant connect to EBNEWMT;
grant resource to EBNEWMT;
grant unlimited tablespace to EBNEWMT;
exit;
EOF
[oracle@outer_proj bin]$ chmod 755 sql.sh//最後記得給腳本執行的權限
(執行此操作時注意要斷開一切與數據庫的連接纔可以,包括tomcat關閉)
4.245上將epsiii.dmp導入數據庫
[oracle@outer_proj ~]$ cd /opt/dump
[oracle@outer_proj dump]$imp system/123456 fromuser=epsiii touser=ebnewmt grants=y indexes=y constraints=y file=epsiii.dmp