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explain various steps uses in evaluation and maintenance of MIS.
Why older data models are being replaced by new data modelling 100 words accepted#
The basic merits of decomposition. The Advantages of Decomposition 1. Separate person can work on each subsystem. 2. A particular software engineer can specialize in a
Explain the Exec statement in SQL Ans: Exec statement has the structure EXEC SQL END-EXEC Embeded SQl statements are of a form identical to non embedded SQL statem
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key. Ans: 3NF A relation is in 3 NF if an attribute of
In Database software have only pure security or some dis secured by administrator?
notes about update opreation
how to make an e r diagram?
Probelm: (a) A distributed database (DDB) is a collection of multiple, logically interrelated databases which are physically distributed over a computer network" (i) Give a
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