troubleshooting Question

Round Issues in SSIS Derived Column

Avatar of JeepGeekin
JeepGeekin asked on
Microsoft SQL Server
9 Comments1 Solution4858 ViewsLast Modified:
The Round expression function is not consistently rounding 5's up. In a Derived Column task, I am converting 3 decimal numbers to 2 decimals using the following expression:
(DT_DECIMAL,2)ROUND(ColumnName, 2).

I noticed it only has a prolem when handling 5's. Sometimes it round them up & sometimes it drops them.  Also, the Round SQL function rounds the values correctly. It's just the Round expression that does this. I thought it might have been a setting on the server telling it to use European, or crazy hedgehog rules for rounding.

So far the following Round up correctly:
23.015 = 23.02
11.475 = 11.48
67.915 = 67.92
32.135 = 32.14

The following do not round up correctly:
10.935 = 10.93
11.805 = 11.8
6.305 = 6.3
9.605 = 9.6
8.985 = 8.98
21.585 = 21.58

Does anyone know what the deal is? This should be pretty standard stuff.
Reza Rad
Consultant, Trainer

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