在Linux上迁移Oracle数据库数据可以通过多种方法实现,主要包括使用Data Pump (expdp/impdp)、RMAN (Recovery Manager) 以及Oracle GoldenGate等工具。以下是使用Data Pump和RMAN进行数据迁移的详细步骤:
前提条件:
迁移步骤:
源服务器操作:
创建目录对象:
[root@linux100] # su - oracle [oracle@linux100] # sqlplus / as sysdba SQL create or replace directory tmpDir as '/tempFile'; 使用expdp导出数据表:
[oracle@linux100] # expdp username/password@Ip:port/database schemas dbTest directory tmpDir dumpfile export.dmp logfile export.log; 复制dmp文件到目标服务器:
[oracle@linux100] # scp -P 2222 /tempFile/export.dmp name@xxx.xxx.xxx.xxx:/home/tempFile; 目标服务器操作:
创建目录对象:
[root@linux101] # su - oracle [oracle@linux101] # sqlplus / as sysdba SQL create or replace directory tmpDir as '/tempFile'; 使用impdp导入数据表:
[oracle@linux101] # impdp username/password@Ip:port/database schemas dbTest directory tmpDir dumpfile export.dmp job_namemyjob; 前提条件:
迁移步骤:
源服务器操作:
连接到RMAN:
[oracle@linux100] # rman target / 备份数据库:
RMAN backup database plus archivelog; 迁移数据文件:
RMAN run { allocate channel c1 type disk; allocate channel c2 type disk; restore database from tag 'backup_tag'; switch datafile all; release channel c1; release channel c2; } 更新初始化参数文件:
[oracle@linux100] # sqlplus / as sysdba SQL ALTER SYSTEM SET DB_FILE_NAME_CONVERT '/old/path,/new/path' SCOPESPFILE; SQL ALTER SYSTEM SET LOG_FILE_NAME_CONVERT '/old/path,/new/path' SCOPESPFILE; 关闭数据库并启动到NOMOUNT状态:
SQL shutdown immediate; SQL startup nomount; 目标服务器操作:
创建目录对象:
[root@linux101] # su - oracle [oracle@linux101] # sqlplus / as sysdba SQL create or replace directory tmpDir as '/tempFile'; 使用RMAN恢复数据库:
RMAN startup nomount; RMAN @/target-directory/crdb.sql;