Oracle SQL - Case Expression

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

dc0819Asked:
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riazpkConnect With a Mentor Commented:
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>

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Naveen KumarConnect With a Mentor Production Manager / Application Support ManagerCommented:
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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awking00Commented:
You might consider using decode instead of case. See attached.
query.txt
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