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SQL-CASE STATEMENT 

Pooja Goel  |   Nov 7, 2019  |  Views: 27

Description:

CASE is like “IF-ELSE IF-THEN-ELSE” .

 

CASE statement is used to check “Matched” and “UnMatched” condition.If there are more condition in CASE statement and first condition matches then return values for first condition .


If first condition does not match then it will return values for ElSE condition.

 

Syntax : 

CASE
    WHEN condition1 THEN result1
    WHEN condition2 THEN result2
    ..
    ELSE result
END

 

 

Example : 

There is created “Employee” table in a database

 

 

 

The following query will return records by using “CASE” statements.

 

SELECT 
NAME, SALARY,
CASE WHEN Departmentid=101 THEN 'IT DEPARTMENT'
 WHEN Departmentid=102 THEN 'SALES DEPARTMENT'
 WHEN Departmentid=103 THEN 'FINANACE DEPARTMENT'
ELSE 'TECHNICAL SUPPORT'
END  AS 'Department Wise Employee'
FROM Employee

Output : 

 


Comments:
Content Contributor
Pooja Goel

Pooja Goel

Sr. Software developer at Damco Solutions Pvt. Ltd.  |   Noida, Uttar Pradesh, India

I am a sr. software developer working on technologies like SQL, SSIS, SSRS, DB2,Tableau, ASP.NET having 7 years of experience.


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