OK, this is the scenario. I have a database with many columns ( each a mean value and a standard deviation, and with it a set of coordinates that i want to retrieve ).
Then i have a value that i want to query with the database, by comparing it with the mean and its standard deviation, and it should return a few sets (lets say 2) of coordinates whereby the the value of the mean is closet to the one in the database, in order of nearest value. How should i do it, since i am not using the exact value of the mean in the database?
I know its a bit confusing the way i wrote, but anyone understand wat i am trying to say and can help, i am very grateful. I had googled around for answers but cannot find. Thanks.
I want to store a number of .NET type double (16,95) into the database column of type numeric, but it is stored as integer (17) and when I call the value in my application, it is displayed as 17. How can I solve this problem? Thanks in advance,
Hi all, I am sorry if i am posting this error in an inappropriate froum. Well in my asp.net intranet web application i want to enter a number to the database(sql sever 2005) that has a column(schoolkm) whose type is decimal(9, 2). Now if i want to enter the value 1.5 in the text box and enter that value to the database through interface then that value automatically rounds to 2. But when i get into the table and enter that value by hand then that value enters perfectly i.e. without rounding of. I want to know the reason and how can i cure this problem. Regards & thanks in advance
Anybody noticed that SQL Server rounds up if the value is half waybetween two rounded values, but C#'s Decimal.Round(Decimal,Int32)rounds to nearest even number?[color=blue]>From MSDN: "When d is exactly halfway between two rounded values, the[/color]result is the rounded value that has an even digit in the far rightdecimal position. For example, when rounded to two decimals, the value2.345 becomes 2.34 and the value 2.355 becomes 2.36. This process isknown as rounding toward even, or rounding to nearest."I perform the same calculation sometimes on the web server in C# andsometimes at the database in T-SQL, but want to get the same resultfrom both calculations. Could anybody offer any strategies for dealingwith this?Thanks ~ Matt
Hi How do I get a nearest distance of a point? For example, I have two tables A and B and I want to find the nearest distance between the records of the two tables. In addition, one of the tables should also give me the distance. The data I have geo spatial data. Can this be done in SQL Help will be appreciated
Hi, I'm making a birthdays database where I want to list everyone in it ordered by the firstcoming birthdays according to the current date.
I have all the birthday records stored in a table called bursdager and the person name is stored in the navn column and the persons birthday date is stored in the dato column.
I'm having some problems, currently I have this statement:
DECLARE @tbl TABLE (navn VARCHAR(60), dato DATETIME)
INSERT INTO @tbl SELECT navn, dato FROM bursdager WHERE DATEPART(month, dato) >= DATEPART(month, getdate()) ORDER BY DATEPART(month, dato), DATEPART(day, dato)
INSERT INTO @tbl -- those are the one who allready have had birthday this year SELECT navn, dato FROM bursdager WHERE DATEPART(month, dato) < DATEPART(month, getdate()) ORDER BY DATEPART(month, dato), DATEPART(day, dato)
SELECT * FROM @tbl
It works *allmost* as it should-- except, it still lists the last persons who had birthday first, even the days after their birthday if the month is still the same.
I thought about adding an additional check: Code:
AND DATEPART(day, dato) >= DATEPART(day, getdate())
in the WHERE clause of the SELECT statement but that won't be correct either because it then just lists everyone based on whether the day number the person was born is higher or less than the day number of the current date.
Anyone have any suggestions? Is there an easier way to do it?
I have a field with seconds in it and I need to disply it in hours which I can do by dividing it by 3600, but I am trying to figure out how to round it up to the nearest 15 minutes. I have tried a couple of things with ROUND and CEILING, but am not getting the right numbers back. Any help would be greatly appreciated.
Code: AccountNo StartDateTime EndDateTime 1234 4/30/2012 8:00 AM 5/15/2012 8:00 AM
Of course there are multiple accounts, about 2100 in this case but they very by time periods, and multiple start and stop dates for an account. I need to get the start times and match them w/ the nearest end times but AFTER the value of the start time. Nearest end times must be forced to correspond to the nearest start time but there are some start times w/o end times and end times w/o start times due to user data entry errors. I need a solution that handles this. It is ok w/ the customer to make the assumption of nearest times supposedly going together so they can show the users the errors. I am on SQL Server 2008 R2.
I have the following tableCREATE TABLE Readings(ReadingTime DATETIME NOT NULL DEFAULT(GETDATE()) PRIMARY KEY,Reading int NOT NULL)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050101', 1)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050201', 12)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050301', 15)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050401', 31)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20050801', 51)INSERT INTO Readings (ReadingTime, Reading) VALUES ('20051101', 106)GO-- list the tableSELECT ReadingTime, Reading FROM ReadingsGOIt is a table of readings of a free-running counter that istime-stamped. I need to determine the value of the reading thatcorresponds to the closest date to the supplied dateAre there more optimal/efficient ways of accomplishing this than thefollowing?DECLARE @when DATETIMESET @when = '20050505'SELECT TOP 1 ReadingTime, Reading FROM ReadingsORDER BY abs(DATEDIFF(minute, ReadingTime, @when))The above gives me the desired result of ('20050401', 31).Any suggestions would be appreciated
I have such a scenario: - two tables with record containing car vehicle number, datetime of message and other data like weight ect. - first table contains only two messages for one car per one day - second has many messages for one car for one day
I would like to get a list of messages from first table but joined with the nearest (previous) record for the same car from second table.
I have a date (my birthday). I would like to find the closest birthdays to mine, both before and after my birthday. I would like to list the people in my database who are the closest age to me, but in that order. So sorting my table by age and taking a row below and above my birthday is not going to work. This is because the three people below me may all have their birthday the next day, while those above me may have theirs years before mine.
Birthdays sorted by date:
05/10/1979 jim 12/01/1980 bob 10/04/1983 mike 10/05/1983 larry 11/21/1983 dan 12/07/1984 josh 05/07/1999 dylan
The order I wish to achieve is:
10/05/1983 larry 11/21/1983 dan 12/07/1984 josh 12/01/1980 bob 05/10/1979 jim 05/07/1999 dylan
ChangeID ChangeDate EquipmentID ModuleID EquipStatus 1 12/9/08 230 1789 Normal 2 13/9/08 450 1245 Normal 3 17/9/08 230 1789 Open 4 21/9/08 230 1899 Open 5 21/9/08 450 1674 Normal 6 22/9/08 450 2364 Normal
Given a date, what module was each equipment item in on that date?How do I get the date of the nearest previous event from a list like this? I got a query from one of the post in this Forum only using Cross Apply to find the nearest record from the above table based on Date i.e.
SELECT outerT.* FROM your_table AS outerT CROSS APPLY ( SELECT TOP 1 equipment_id , change_date FROM your_table AS innerT WHERE innerT.change_date <= @point_in_time AND innerT.equipment_id = outerT.equipment_id ORDER BY change_date DESC ) AS applicable_records WHERE applicable_records.change_date = outerT.change_date
The problem is I need to get this query without using Cross Apply as i need to use the same for the LINQ which doesn't support Cross Apply.
I found in another forum that if I take the seconds and divide them by 15 then round up and multiply them by 4 I can get this done, but I can't figure out how to work it into my select statement. Anyhelp would be greatly appreciated. dbo.SLPTRANS.TimeSpent is the field I am trying to convert.
SELECT dbo.SLPTRANS.ClientID, SUM(dbo.SLPTRANS.TransValue) AS Expr1, dbo.SLPTRANS.TimeSpent AS Expr2 FROM dbo.SLPTRANS INNER JOIN dbo.INVOICE ON dbo.SLPTRANS.InvoiceID = dbo.INVOICE.RecordID GROUP BY dbo.SLPTRANS.ClientID HAVING (dbo.SLPTRANS.ClientID = 405)
I want to do a simple thing but it seems to be behaving not as i am expectingI want to round number either up or down....e.g: 4.3 should round to 4 4.7 should round to 5when i use the round function like this: 83/17=4.88round( 83/17 , 0 ) it gives the answer as 4....when i was expecting it to be 5.... i know there is a ceiling function...but depending on the value of the division sometimes i want it to round up and sometimes round down. how can i do this? hope this makes sense. thanks
Has anyone been experiencing problems with rounding to 2 decimal places in SQL 7? I have a bunch of queries that generate web reports. Under 6.5 everything was fine. Now under 7.0 any number that needs to be rounded to 2 decimals is actually giving me several decimal places.
Here is a simplified version of what I am doing: DECLARE @x real DECLARE @y real SELECT @x = 223.1 SELECT @y = 59.7
Result should be 3.74. But instead I am getting 3.7400000000000002
If anybody has heard if Microsoft has declared this as a known bug please let me know.