## Why does SQL Server round off results of dividing two integers?

When you do integer division (integer divided by integer) you always get an integer answer. 50/100 = .50, which is 0 in integer-speak. Have you tried dividing MY_COLUMN by 100.0?

When you do integer division (integer divided by integer) you always get an integer answer. 50/100 = .50, which is 0 in integer-speak. Have you tried dividing MY_COLUMN by 100.0?

After a night lost trying to solve this problem I believe I’ve found a rather simple solution, here it is: function bcceil($number) { if (strpos($number, ‘.’) !== false) { if (preg_match(“~\.[0]+$~”, $number)) { return bcround($number, 0); } if ($number[0] != ‘-‘) { return bcadd($number, 1, 0); } return bcsub($number, 0, 0); } return $number; } … Read more

Since you’re looking for fourths (.00, .25, .50, .75), multiply your number by 4, round to nearest whole number as desired (floor if down, ceil if up), then divide by 4. 1.32, down to nearest fourth: 1.32 * 4 = 5.28 floor(5.28) = 5.00 5.00 / 4 = 1.25 Same principle applies for any other … Read more

It’s simple math. Given a number X and a rounding factor N, the formula would be: round(X / N)*N

To do rounding up in truncating arithmetic, simply add (denom-1) to the numerator. Example, rounding down: N/2 M/5 K/16 Example, rounding up: (N+1)/2 (M+4)/5 (K+15)/16 To do round-to-nearest, add (denom/2) to the numerator (halves will round up): (N+1)/2 (M+2)/5 (K+8)/16

A cast to timestamp(0) or timestamptz(0) rounds to full seconds: SELECT now()::timestamp(0); Fractions are not stored in table columns of this type. date_trunc() truncates (leaves seconds unchanged) – which is often what you really want: SELECT date_trunc(‘second’, now()::timestamp);

EDIT 2: Use the Number object’s toFixed method like this: var num = Number(0.005) // The Number() only visualizes the type and is not needed var roundedString = num.toFixed(2); var rounded = Number(roundedString); // toFixed() returns a string (often suitable for printing already) It rounds 42.0054321 to 42.01 It rounds 0.005 to 0.01 It rounds … Read more

This will do the work: function round5(x) { return Math.ceil(x/5)*5; } It’s just a variation of the common rounding number to nearest multiple of x function Math.round(number/x)*x, but using .ceil instead of .round makes it always round up instead of down/up according to mathematical rules.

Try this function CREATE FUNCTION [dbo].[RoundTime] (@Time datetime, @RoundTo float) RETURNS datetime AS BEGIN DECLARE @RoundedTime smalldatetime DECLARE @Multiplier float SET @Multiplier= 24.0/@RoundTo SET @RoundedTime= ROUND(CAST(CAST(CONVERT(varchar,@Time,121) AS datetime) AS float) * @Multiplier,0)/@Multiplier RETURN @RoundedTime END select dbo.roundtime(’13:15′,0.5) The 1st param is the time to be rounded and the 2nd will be base on your list … Read more

mt_rand uses the Mersenne Twister algorithm, which is far better than the LCG typically used by rand. For example, the period of an LCG is a measly 232, whereas the period of mt_rand is 219937 − 1. Also, all the values generated by an LCG will lie on lines or planes when plotted into a … Read more