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thangnc
Starting Member
7 Posts |
 Posted - 2013-05-13 : 01:01:40
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| Hi all!My code:declare @f1 float, @f2 float, @f float;select @f1 = 0.3, @f2 = 0.3set @f = @f1 + @f2select @f +=@f1select @f = @f -0.9select @f----------------result @f: -1.11022302462516E-16why @f not = 0?How to do @f = 0? |
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bandi
Master Smack Fu Yak Hacker
2242 Posts |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2013-05-13 : 01:18:30
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| float and real are only approximate numerical data types. so they actually precision may differ from what you see. SO if you want to deal with accurate numeric data use decimal or numeric------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/https://www.facebook.com/VmBlogs |
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Float Error?