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SQL Statement needs to use if and else

Posted on 2014-04-09
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Last Modified: 2014-04-10
I am trying to write what is seemingly a very simple statement that will retrieve 2 columns
1 part_no
2 qty_on_hand
However I need qty on hand to say if qty_on_hand =>30, 30, else qty_on_hand

the results should look like
1234.12345 30
1235.13265 5

SELECT item_no,
FROM MYTABLE

sadly above is all I have so far.
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Question by:Jeremy Kirkbride
5 Comments
 
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Accepted Solution

by:
Dulton earned 500 total points
ID: 39990102
select item_no, case when qty_on_hand >= 30 THEN 30 ELSE qty_on_hand END as [Qty_On_hand]
from MyTable
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LVL 28

Expert Comment

by:Bill Bach
ID: 39990201
You list a couple of SQL engines in the TOPICS list, so it is unclear which you are using.  You may also be able to use the IF statement:

select item_no, IF(qty_on_hand >= 30,30,qty_on_hand) from MyTable
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LVL 48

Expert Comment

by:PortletPaul
ID: 39990543
Although Bill is likely to disagree with me I would suggest you stick with CASE expressions for SQL queries.

It is true that MySQL allows the syntax that Bill has provided, and a similar syntax is permitted in SQL Server 2012 like this:

select item_no, IIF(qty_on_hand >= 30,30,qty_on_hand) from MyTable

but both dbms types, and all versions I'm familiar with, support the CASE expression provided in the first answer.

No points please.
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Author Closing Comment

by:Jeremy Kirkbride
ID: 39991332
Thanks so much
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