Abstract:We consider the theory of database queries with functions on the complex value data model. The notion of a syntactic criteria, called "embedded allowed", for queries which guarantee embedded domain independence, is generalized for this model. We show that all embedded allowed calculus (or fix-point) queries are external function-domain independent and continuous. We also develop an algorithm for translating embedded allowed queries into equivalent algebraic expressions as a basis for evaluating safe queries in… Show more
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