How to get a float result by dividing two integer values using T-SQL?

sql-server sql-server-2008 division rounding
LaBracca picture LaBracca · Jul 30, 2012 · Viewed 314k times · Source

Using T-SQL and Microsoft SQL Server I would like to specify the number of decimal digits when I do a division between 2 integer numbers like:

select 1/3

That currently returns 0. I would like it to return 0,33.

Something like:

select round(1/3, -2)

But that doesn't work. How can I achieve the desired result?

Answer

Richard picture Richard · Jul 30, 2012

The suggestions from stb and xiowl are fine if you're looking for a constant. If you need to use existing fields or parameters which are integers, you can cast them to be floats first:

SELECT CAST(1 AS float) / CAST(3 AS float)

or 

SELECT CAST(MyIntField1 AS float) / CAST(MyIntField2 AS float)

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