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Ways for Selecting Data Structure
Algorithms operate on data structure. Therefore, selection of the best algorithm means selecting the best data structure from whole bunch. The data structures do not add any information to analysis model, but they systematize it in a form which is convenient for algorithms which uses it. Many such data structure contains lists, arrays, stacks, queues, trees etc.
Some variations on these data structures are main concern queues, binary trees etc. Most of the object oriented languages provide different sets of generic data structures as part of their already defined class libraries.
What is Nested Queries explain in details? Nested Queries - A SELECT query could have subquery(s) in it. While a SELECT query having another SELECT query in it, is known as n
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
Special comparison operator used in where Clause a. between. ...and...It gives range among two values (inclusive) Example: SELECT ENAME, SAL FROM EMP WHERE SAL BETWE
What is MySQL? MySQL is a relational database management system which has eleven million installations. It can be used for both Linux and Window. Managing database includes add
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Isolation or Independence : The isolation property shows that the updates of a transaction should not be visible till they are committed. Isolation assurance that the progresses of
Homework chapter 10 no 3
Question: (a) What is ODBC and what is its function? (b) What is Web application server, and how does it work from a database perspective? (c) What does e-commerce mean
Functional Dependency Consider a relation R that has 2 attributes A and B. The attribute B of the relation is functionally dependent on the attribute A if and only if for every
Illustration of implementation of inheritance Let us take the illustration of implementation of inheritance. Suppose that we are about to implement the Stack class and by now w
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