Question: In ordinary arithmetic there are two special numbers, I and 0, with the properties that n * 1 = 1 * n = n And

In ordinary arithmetic there are two special numbers, I and 0, with the properties that n * 1 = 1 * n = n
And n * 0 = 0 * n = 0 for all number n. What relations (if any) play analogous roles in the relational algebra? Investigate the effect of the algebraic operations discussed in this chapter on those relations.

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We can say that TABLEDEE DEE for short is the analog of 1 with respect to multiplication in ordinary arithmetic because r TIMES DEE DEE TIMES r r for ... View full answer

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