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Pseudocolumn

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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

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  1. ^ Loney, Kevin (2002). Oracle9i The Complete Reference. McGraw-Hill Osbourne. p. 1122.


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