Why are pseudo variable logically unnecessary?
Answer to relevant QuestionsDefine and operator that, given a rational number, returns the cube of that number,Given an appropriate set of scalar type definitions for the suppliers-parts-projects database do not attempt to write the relvar definitions. Give an example of your own of a relation with(a) One relation-valued attribute and(b) Two such attributes. Also, give two more relation that represent the same information as those relations but do not involve ...Consider the SQL type point and the SQL table points as defined in the subsection “Structured Types” Type Point has a representation involving Cartesian coordinates X and Y. What happens if we replace that type by a ...Which (if any) of the following expressions are equivalent?(a) Summarize r per r ( ) add count as ct (b) Summarize r add count as ct(c) Summarize r by ( ) add count as ct (d) Extend TABLE-DEE add count (r) as ct
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