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Write short notes on tuple relational calculus.
The tuple relational calculation is anon procedural query language. It defines the desired information without giving a particular procedure for obtaining that information.
The definition of the classes and operation can often be adjusted to increase the amount of inheritance". Justify the above statement. Adjustment of Inheritance The def
Give the Introduction of OBJECT DESIGN Strategies which are selected during system design are carried out in object-oriented design. In this procedure, objects which are identi
a publishing company produce scientific books on various subjects. the books are written by authors who specialize in one particular subject. the company employs editors who, not n
What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
SET concept is used in which type of modelling? SET concept is used in Network Model.
I need help for my Uni assignments
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
How do I use strap on?#
why three level architecture had been developed/
How does a query tree represent a relational algebra expression? Discuss any three rules for query optimisation, giving example as to when should each rule be applied. Ans
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