How to export and import table structures in PL/SQL?

2 years ago
Olivia Parker
2 minutes

In PL/SQL, you can use the Data Pump tool to export and import table structures. Here are some common methods:

  1. Export table structure using EXPDP.
  2. Export the metadata only for the specified schema using the expdp command with the given username, password, directory, and dumpfile name.
  3. The username and password serve as credentials for the database user, directory_name specifies the directory for the exported file, dumpfile_name indicates the file name for the export, and schema_name refers to the schema to be exported.
  4. Import table structure using IMPDP.
  5. Import metadata only for the specified schema using the impdp command with the provided username, password, directory, dumpfile, and schema name.
  6. In which, username and password are the credentials of the database user, directory_name is the directory of the imported file, dumpfile_name is the name of the imported file, and schema_name is the name of the schema to be imported.
  7. Export table structure using SQL Developer.
  8. Open SQL Developer and connect to the database.
  9. Expand the schema in the object browser where you want to export the table structure.
  10. Choose the table you want to export, right-click and select “Export”.
  11. Select the export type as “DDL”, specify the location and name of the export file, and then click the “Export” button.
  12. Import table structure using SQL Developer.
  13. Open SQL Developer and connect to the database.
  14. Expand the schema in the object explorer from which you want to import the table structure.
  15. Select “File” on the toolbar, then choose “Open” and select the SQL file that contains DDL statements.
  16. Confirm the objects you want to import, then click on the “Run” button.

Please be aware that when using the data pump tool to export and import table structures, the corresponding database permissions are required.

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