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What is a view?
A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived from one or more tables.
Determine the rule that a value of a foreign key should appear as a value of some particular table is called a Ans: Referential constraint. The rule that a value of a fo
prototype of a distributed information system for a national car part retail outlet chain.
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
Define check point and its impact on data base recovery. Ans: There could be hundreds of transactions handled per minute, in a large on-line database system.
explain various steps uses in evaluation and maintenance of MIS.
What is schema
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
Define value set? Value set: It is a set of values. You do not always need a user to enter junk free text within all the fields. Therefore, Oracle Apps uses value set to valida
What is serialization? Where it is used and why? Serialization is a basic term used for mechanisms which enable objects and object structures to be converted into portable for
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