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Explain trivial dependency?
Functional dependency of the form α ->β. is trivial if α C β. Trivial functional dependencies are satisfied by all the relations.
client server architeutre
how does Btree differ from a B+ - tree?
prototype of a distributed information system for a national car part retail outlet chain.
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
exercise solution
Explain different categories of failures that occur in Oracle database? Categories of Failures - In Oracle database subsequent types of failures can occurred: Statement Failu
What is the use of sub queries? A sub query is a select-from-where expression that is nested with in another query. A common use of sub queries is to do tests for set membershi
Determine the Disadvantages of file based systems Some of the disadvantages of file based systems are like this: Data redundancy and inconsistency: the dissimilar applic
Conflicting Operations in Schedule: The three simple ways of interleaved instruction implement of transactions T1 and T2. Please note that in the following tables the first col
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
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