Friday, 12 April 2013

What are the Clauses in Sql Server


)  Sql statements are build by using clauses. The different clauses in the sql server.
1.      Where Clause
2.      Order by Clause
3.      Group By Clause
4.      Having Clause
Where Clause :-   Where clause is used to extract particular records from the table based on  a condition.
Ex: select <columnList> from <tableName> where <condition>
Order by Clause  :   Order by clause is used to sort data based on one or more column’s either in ascending order or descending order .
Ex: Select <columnlist> from <tableName> order by <columnList>
Group by Clause :  Group by clause is used to group the records based on one or more columns to calculate aggregates like Max, Min, Sum etc.
Having Clause :  Having clause is used to exact particular groups use having clause. And to filter data after group by use having clause.

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