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SQL round decimal

Posted on 2010-08-25
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Last Modified: 2012-05-10
In a large select stmt, on of the columns I am reading from contains a number (double). This column may contain a whole number, or may contain a decimal. Sometimes the decimal is very long.

I am looking to round the decimial to 4, but only when required. If the number is whole or less than 4 decimals I prefer it stay that way.

How would I do this?
I am quering against a DB2 database
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Question by:JDCam
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4 Comments
 
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Expert Comment

by:GO-87
ID: 33522953
Would this work?
SELECT ROUND (MyNumber,  4)
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GO-87 earned 2000 total points
ID: 33522981
Oh I see what you're asking. Does this work?
SELECT (ROUND(MyNumber*10000),0)/10000
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Expert Comment

by:GO-87
ID: 33523036
Note: TRUNC will truncate decimal places (i.e. lose digits),
whereas ROUND will round down or up to the nearest value, to the specified number of decimal places.
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Author Comment

by:JDCam
ID: 33523048
I think so.... good thinking, very logical.
I will test some more but looks to give the right output.
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