Question
a. The relational set operators UNION, INTERSECT, and MINUS work properly only if the relations are union-compatible. What does union-compatible mean, and how would you
a. The relational set operators UNION, INTERSECT, and MINUS work properly only if the relations are union-compatible. What does union-compatible mean, and how would you check for this condition?
b. Describe the important features and applications of SQL functions
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Privacy In Statistical Databases Unesco Chair In Data Privacy International Conference Psd 2008 Istanbul Turkey September 2008 Proceedings Lncs 5262
Authors: Josep Domingo-Ferrer ,Yucel Saygin
2008th Edition
3540874704, 978-3540874706
