## Rounding a number up to the nearest 5

 Author Message smrobin SSC Veteran Group: General Forum Members Points: 242 Visits: 136 So I am attempting to mimic some legacy code on an old server at my work. It has a calculation to determine cost. What I need to do is round the number up to the nearest 5th.For example:1.0 -> 5 (everything less than 5 gets rounded to give)5-> 55.75->58->1011->1586.5->90so any number that has a 5 in it before the decimal - will stay rounded to 5. Example - 75.65 -> 75. I have the following code:declare @mon numeric(10,2)set @mon = 86.5 select case when (round(@mon/5,0)*5) < 5 then 5 else (round(@mon/5,0)*5) endHowever - when I run it - 86.5 gets rounded to 85. I need it to round to 90.Any suggestions? Sean Lange SSC Guru Group: General Forum Members Points: 64605 Visits: 17978 You can use a tally for this pretty easily.Here is the code to create a tally table view. This is super fast!!!`create View [dbo].[Tally] asWITH E1(N) AS (select 1 from (values (1),(1),(1),(1),(1),(1),(1),(1),(1),(1))dt(n)), E2(N) AS (SELECT 1 FROM E1 a, E1 b), --10E+2 or 100 rows E4(N) AS (SELECT 1 FROM E2 a, E2 b), --10E+4 or 10,000 rows max cteTally(N) AS ( SELECT ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4 )select N from cteTallyGO`Now we just need to create your query. Please note that I used a cte here because we didn't have a table of data to work with.`with MyData (MyValue, Target) as( select 1.0, 5 union all select 5, 5 union all select 5.75, 5 union all select 8, 10 union all select 11, 15 union all select 86.5, 90)select *from MyData dcross apply ( select top 1 * from Tally where N >= d.MyValue and N % 5 = 0 order by N) x`--EDIT--You can read more about tally tables here. http://www.sqlservercentral.com/articles/62867/ _______________________________________________________________Need help? Help us help you. Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.Need to split a string? Try Jeff Modens splitter.Cross Tabs and Pivots, Part 1 – Converting Rows to Columns Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs Understanding and Using APPLY (Part 1)Understanding and Using APPLY (Part 2) LinksUp SSCommitted Group: General Forum Members Points: 1769 Visits: 4640 Though not as cool a solution as Mr. Lange's tally table, this alternative is more math oriented than set oriented and is very fast. Plus you could easily turn this into a SP passing any value that you want to round to. NOTE: I borrowed Mr. Lange's cte to demo the solution. (Thank-you!)`;with MyData (MyValue, Target) as( select 0.5, 5 union all select 1.0, 5 union all select 2.0, 5 union all select 5, 5 union all select 5.75, 5 union all select 8, 10 union all select 11, 15 union all select 50, 50 union all select 50.5, 50 union all select 50.75, 50 union all select 51, 55 union all select 54.99, 55 union all select 86.5, 90) Select d.MyValue, d.Target, case when d.MyValue % 5 < 1 then FLOOR(d.MyValue) when d.MyValue % 5 < 3 then FLOOR ((d.MyValue + (5.0 / 2.0)) / 5) * 5.0 + 5.0 else FLOOR((d.MyValue + (5.0 / 2.0)) / 5) * 5.0 end as Result from MyData d`The case statement was required because you are rounding UP to the nearest 5, not just to the nearest 5. __________________________________________________________________________________________________________How to Post to get the most: http://www.sqlservercentral.com/articles/Best+Practices/61537/ smrobin SSC Veteran Group: General Forum Members Points: 242 Visits: 136 Thanks for the reply - the problem I have is that I don't always know what the number will be. I have the rules to which I apply to the numbers.I was hoping to write a simple case statement to handle everything. Any suggestions on that? LinksUp SSCommitted Group: General Forum Members Points: 1769 Visits: 4640 smrobin (9/13/2013)Thanks for the reply - the problem I have is that I don't always know what the number will be. I have the rules to which I apply to the numbers.Not sure who you are talking to!Since you did not provide any dll or sample data, it had to be made up. Both solutions are generic in that you have to modify either of them to use your table and your column names. Also, both solutions are rounding up whatever is passed to them. There is no "fixed" value. I was hoping to write a simple case statement to handle everything. Is that not what I posted? __________________________________________________________________________________________________________How to Post to get the most: http://www.sqlservercentral.com/articles/Best+Practices/61537/ Sean Lange SSC Guru Group: General Forum Members Points: 64605 Visits: 17978 Edited my code...but the edit was incorrect. :-D _______________________________________________________________Need help? Help us help you. Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.Need to split a string? Try Jeff Modens splitter.Cross Tabs and Pivots, Part 1 – Converting Rows to Columns Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs Understanding and Using APPLY (Part 1)Understanding and Using APPLY (Part 2) smrobin SSC Veteran Group: General Forum Members Points: 242 Visits: 136 Thanks for the replies guy! I used your combined logic and got it to work! Thanks again - love this site! Jeff Moden SSC Guru Group: General Forum Members Points: 221222 Visits: 42002 smrobin (9/16/2013)Thanks for the replies guy! I used your combined logic and got it to work! Thanks again - love this site!Two way street here, my friend. Please post what you ended up with. Thanks. --Jeff ModenRBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.First step towards the paradigm shift of writing Set Based code: Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair Helpful Links:How to post code problemsHow to post performance problemsForum FAQs Don Halloran Ten Centuries Group: General Forum Members Points: 1327 Visits: 1490 select ceiling(floor(@somevalue) / 5.0) * 5.0 Blog on sqlservercentral LinksUp SSCommitted Group: General Forum Members Points: 1769 Visits: 4640 Don Halloran (9/18/2013)select ceiling(floor(@somevalue) / 5.0) * 5.0A MUCH better solution! __________________________________________________________________________________________________________How to Post to get the most: http://www.sqlservercentral.com/articles/Best+Practices/61537/