Pseudocolumn

A Pseudocolumn is a "column" that yields a value when selected, but which is not an actual column of the table. An example is RowID or SysDate.[1] It is often used in combination with the DUAL table.

References

  1. ↑ Loney, Kevin; Koch, George (2002). Oracle9i: The Complete Reference. McGraw-Hill/Osborne. p. 1122. ISBN 978-0-07-222521-1.


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