Question

Using SQL Server 2000

I want to reduce the decimal length

Query

Select 23/12 as total

Output is showing as 1.99999999999

I don’t want to round the value, I want to diplay like this 1.99

Tried Query

Select LEFT(23/12, LEN(23/12) - 3) as total

The above query is working only if there is decimal value like 12.444444, but if the total is single digit means like 12 or 4 or 11…., i am getting error at run time.

How to do this.

Need Query Help

Answer 1

There is a very simple solution. You can find it in BOL. Round takes an optional 3rd argument, which is round type. The values are round or truncate.

ROUND numeric_expression , length [ ,function ] )

…

function Is the type of operation to perform. function must be
tinyint, smallint, or int. When function is omitted or has a value of
0 (default), numeric_expression is rounded. When a value other than 0
is specified, numeric_expression is truncated.

So just do

Select ROUND(cast(23 as float)/12, 2, 1) as total

That gives 1.91. Note, if you were really seeing 1.999 – something is really wrong with your computer. 23/12 = 1.916666666(ad infinitum). You need to cast one of the numbers as float since sql is assuming they’re integers and doing integer division otherwise. You can of course cast them both as float, but as long as one is float the other will be converted too.