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Oracle SQL - Case Expression

Posted on 2011-02-14
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Last Modified: 2012-05-11
I need assistance in processing a table with the columns of departmetn_id, last_name, salary where the following condiions apply: - New column called "New Salary"

Must use Case expression

When department_id is 10 then 1.25 *salary
When department_id is 90 then 1.50*salary
When department_id is 130 then 1.75* salary
Otherwise display the old salary

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Question by:dc0819
3 Comments
 
LVL 28

Assisted Solution

by:Naveen Kumar
Naveen Kumar earned 250 total points
ID: 34893965
try this :

select department_id, last_name, salary,
case
when department_id = 10 then 1.25 * salary
when department_id = 90 then 1.50 * salary
when department_id = 130 then 1.75 * salary
else salary end "New Salary"
from your_table;

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LVL 13

Accepted Solution

by:
riazpk earned 250 total points
ID: 34893991
Alternatively, you can also use:
SELECT department_id, last_name, salary,
 CASE department_id
   WHEN 10 THEN salary*1.25
   WHEN 90 THEN salary*1.50
   WHEN 130 THEN salary*1.75
   ELSE salary
 END "NEw Salary"
FROM <Table Name>

Open in new window

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LVL 32

Expert Comment

by:awking00
ID: 34896958
You might consider using decode instead of case. See attached.
query.txt
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