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Selection (relational algebra): Revision history


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  • curprev 13:5513:55, 6 August 2014 87.145.213.30 talk 4,785 bytes +5 In the selection clause the not equal sign is also allowed, a reference is in " Database Sysem Concepts" byAbraham Silberschatz Yale University Henry F. Korth Lehigh University S. Sudarshan Indian Institute of Technology, Bombay in the sixth edition P.218 undo

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