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

2 years ago
William Carter
2 minutes

In PL/SQL, there are several methods available for importing and exporting table data:

  1. Utilize SQL Developer tool for importing and exporting data.
  2. In SQL Developer, select the table you want to import/export data.
  3. Right-click on the table and choose the “Export” or “Import” option.
  4. Select the desired options such as destination file path and export format in the export or import dialogue box.
  5. Click on the “Start” button to perform the export or import operation.
  6. Import data using SQL*Loader tool.
  7. You can use the SQL*Loader utility to load data from an external file into a table.
  8. Create a control file to specify the location of the data files, table name, and column mapping.
  9. Run the SQL*Loader executable, specifying the control file and data file.
  10. SQL*Loader reads the data file and loads it into the specified table.
  11. Importing and exporting data using PL/SQL programs.
  12. Create a PL/SQL program that copies data from one table to another using INSERT INTO and SELECT statements.
  13. Use cursor in the program to iterate through the data of the source table.
  14. Insert data into the target table using the INSERT INTO statement.
  15. Transfer data in and out using the Oracle Data Pump utility.
  16. Export data using the EXPDP command:
    expdp username/password DIRECTORY=directory_name DUMPFILE=dumpfile_name TABLES=table_name
  17. Import data using the IMPDP command:
    impdp username/password DIRECTORY=directory_name DUMPFILE=dumpfile_name TABLES=table_name
  18. In this case, username refers to the name of the database user, password is the user’s password, directory_name is the directory name for exporting/importing files, dumpfile_name is the name of the export/import file, and table_name is the name of the table to be exported/imported.

These are some common methods for importing/exporting data, you can choose the one that best suits your needs.

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