How can Oracle export data from a specified table?

2 years ago
William Carter
1 minute

You can use the expdp command in Oracle database tools to export data from specific tables.

The specific operational steps are as follows:

  1. Open the command line or terminal window and login to the Oracle database server.
  2. Enter the following command format to perform the data export operation:
  3. Export data from a specific table using expdp command with given credentials, saving the dumpfile and logfile in specified directory.
  4. 其中，username是指数据库的用户名，password是指数据库的密码，oracle_sid是指数据库的实例名，table_name是要导出的表名，directory_name是指导出文件存储目录，filename.dmp是导出数据文件的名字，filename.log是导出日志文件的名字。
  5. If you need to export multiple tables, you can separate the table names with commas, for example: tables=table1,table2,table3.
  6. After running the command, the exported data files and log files will be saved in the specified directory.

Important notes:

  1. Export operation requires sufficient database permissions.
  2. Before exporting the data, make sure that the specified directory exists and has the appropriate write permissions.
  3. The exported data files and log files can be imported using the “impdp” command in the Oracle database tool.
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