I was solving a requirement where data entered into a table contained decimals. However the user had a requirement of automatically rounding off the decimals to the nearest digit before inserting into the table. The SQL statements could not be changed to make use of the Round() function. So one of the ways of solving this was to use the numeric datatype in the table definition as shown below:
DECLARE @TmpTable TABLE
(
id int,
amount numeric(7,0)
)
INSERT INTO @TmpTable VALUES (1, 5.556233)
INSERT INTO @TmpTable VALUES (1, 2.123953)
INSERT INTO @TmpTable VALUES (1, 3.753433)
SELECT * FROM @TmpTable
OUTPUT
As you can see, data stored into the table automatically gets rounded off.
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3 comments:
Seems kind of risky to rely on implied functionality instead of just using the Round (http://msdn.microsoft.com/en-us/library/ms175003.aspx) statement.
Does using the temp table buy you anything else?
Dave: Nice point. The client did not want to change the sql statement. They were ok making changes in the schema instead, hence the solution. I have added that point to the post.
what if i do not want round values? how can i stop it?
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