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Alias in Joins

Why do we use aliases during joining two tables?
Asked by: manishayadav_1 | Member Since Apr-2008 | Asked on: Apr 24th, 2008

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jannaat

Answered On : Apr 28th, 2008

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just to have more readability

  
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krishnaindia2007

Answered On : Jun 20th, 2008

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Alias name it temporary name given to a tablen or  columns of a table.
It has its existence until the satement is executed. 

For example in the following example instead of typing tablenames emp and dept every time you may simply use  its alias names.

SELECT a.empno, a.ename, a.sal  , a.job, b.deptno, b.dname
FROM  emp a , dept b
WHERE a.deptno = b.deptno

  
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