what is the difference between relational calculus and
relational algebra ?
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Answer Posted / megha aditya
relational algebra easy to manipulate then relational calculus..
modifications are easy in queries of relational algebra... then in relational calculus
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First input columns brand, mt, re values are ov, 1,re vg, 2,re wu ,3,re. Second input columns are brand, mt, cx their records are ov,4,vg ,5,cx Wu, 6,cx and third input columns brand, mt, rt values are ov,7,rt vg, 8,rt wu, 9,rt but my output is brand, re, cx,rt values are ov, 1,4,7 vg, 2,5,8 wu, 3,6,9
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