Oracle 11g Virtual Columns?

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Date: Sun, 18 Jan 2009 14:26:43 -0800 (PST)
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I have read various articles on virtual columns? I still do not understand their advantages other than they save some disk space, One can put logic of virtual columns in a trigger which will save information in a real column. Real column will need some additional disk space, but it will save some cpu time when one is doing slelects on “virtual” columns. Received on Sun Jan 18 2009 - 16:26:43 CST

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