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SELECT Statement
This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
Using Arithmetic operator
Example:
SELECT ENAME, SAL, SAL+300
FROM EMP;
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
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State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
Improved performance: As the data is located near the site of its demand, and given the inherent parallelism because of multiple copies, speed of database access may be good for di
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