State the type rules for the assignment (“: =”) and equality comparison (“=”) operators.
Answer to relevant QuestionsExplain the following in you own words:Coercion pseudo variableGenerated type selectorLiteral strong typing Ordinal type The-operatorPolymorphic operator type generatorGive a type definition for a scalar type called CIRCLE, what selectors and The-operators apply to this type? Also:a. Define a set of read only operators to compute the diameter, circumference, and area of a given circle.b. ...Write tuple selector invocations for a typical tuple from each of the relvars in the suppliers-parts-projects database.In the body of the chapter, we said that any type whatsoever can be used as the basis for defining relational attributes, in general. That qualifier “in general” was there for a reason, however. Can you think of any ...In ordinary arithmetic there are two special numbers, I and 0, with the properties that n * 1 = 1 * n = nAnd n * 0 = 0 * n = 0 for all number n. What relations (if any) play analogous roles in the relational algebra? ...
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