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Oracle Tutorials - Load Data through External Tables

By: FYIcenter.com

(Continued from previous topic...)

How To Load Data through External Tables?

If you have data stored in external files, you can load it to database through an external table by the steps below:

  • Create an external table with columns matching data fields in the external file.
  • Create a regular table with the same columns.
  • Run an INSERT INTO ... SELECT statement to load data from the external file to the regular table through the external table.

(Continued on next topic...)

  1. What Is the Simplest Tool to Run Commands on Oracle Servers?
  2. What Is the Quickest Way to Export a Table to a Flat File?
  3. How To Export Data with a Field Delimiter?
  4. What Is SQL*Loader?
  5. What Is a SQL*Loader Control File?
  6. How To Load Data with SQL*Loader?
  7. What Is an External Table?
  8. How To Load Data through External Tables?
  9. What Are the Restrictions on External Table Columns?
  10. What Is a Directory Object?
  11. How To Define an External Table in a Text File?
  12. How To Run Queries on External Tables?
  13. How To Load Data from External Tables to Regular Tables?
  14. What Is the Data Pump Export Utility?
  15. What Is the Data Pump Import Utility?
  16. How To Invoke the Data Pump Export Utility?
  17. How To Invoke the Data Pump Import Utility?
  18. What Are Data Pump Export and Import Modes?
  19. How To Estimate Disk Space Needed for an Export Job?
  20. How To Do a Full Database Export?
  21. Where Is the Export Dump File Located?
  22. How To Export Your Own Schema?
  23. How To Export Several Tables Together?
  24. What Happens If the Imported Table Already Exists?
  25. How To Import One Table Back from a Dump File?
  26. What Are the Original Export and Import Utilities?
  27. How To Invoke Original Export/Import Utilities?

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