What Is The Meaning Of An Unsafe Query?


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Anonymous Profile
Anonymous answered
The query which is not safe is called unsafe query.Now what is safe query .To determine whether a query expression is safe we will derive two types of information from a query. The first is whether a variable-column pair t.a is bound to the column of a relation or a constant, and the second is whether two variable-column pairs are directly or indirectly equated (denoted t.v == s.w).
thanked the writer.
Paul Ayebale
Paul Ayebale commented
When u say a query that is "not safe" is an unsafe query ur merely being obvious, could u explain in detail what an unsafe query REALLY is?

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