Round *UP* to the nearest 100 in SQL Server

Question

Is it possible to easily round a figure up to the nearest 100 (or 1000, 500, 200 etc.) in SQL Server?

So:

720 -> 800
790 -> 800
1401 -> 1500

Answer 1

In addition to Gray's answer, I'd use the following inline function:

CREATE FUNCTION dbo.udf_RoundNearest
(
@Number bigint,
@RoundNearest bigint,
@Direction int
)

RETURNS TABLE AS 
RETURN

SELECT CASE WHEN @RoundNearest>=@Number THEN @Number
       ELSE
        (
                (@Number + CASE 
                           WHEN @Direction = 0 --Round Down
                           THEN 0
                           ELSE CASE WHEN @Number % @RoundNearest = 0 THEN 0 ELSE @RoundNearest END
                           END) / @RoundNearest) * @RoundNearest

   END Number

Parameter Definition:

1. @Number - the number you need to round
2. @RoundNearest 10th, 100th , 1000th etc
3. @Direction 0-> round down, 1-> round up

using the function:

SELECT * FROM dbo.udf_RoundNearest (1965,100,1) --> 2000
SELECT * FROM dbo.udf_RoundNearest (1359,100,0) --> 1300
SELECT * FROM dbo.udf_RoundNearest (1999,10,0) --1990
SELECT * FROM dbo.udf_RoundNearest (80,100,0) --> 80 (if the @number parameter is less or equal the @RoundNearest parameter the result will be the @number itself

it can also be used as apply it versus a table such as:

;with tmp (Value) as
  (select 1236 union all select 6584 union all select 9999)

    select t.*, fn.Number
    from tmp t
    cross apply dbo.udf_RoundNearest (Value,100,0) fn

    /*Result Set
    Value   Number
    1236    1200
    6584    6500
    9999    9900*/