date-range

A few of my domain objects contain date ranges as a pair of start and end date properties: public class Period { public DateTime EffectiveDate { get; set; } public DateTime ThroughDate { get; set; } } public class Timeline { public DateTime StartDate { get; set; } public DateTime EndDate { get; set; } } And I find myself with a lot of this: abstract public int Foo(DateTime startDate, DateTime endDate); abstract public decimal Bar(DateTime startDate, DateTime endDate); abstract public ICollection<C5.Rec<DateTime, DateTime>> FooBar(DateTime startDate, DateTime endDate); The last one made me

I have a large dataset in data.table that I'd like to subset by a date range. My data set looks like this: testset <- data.table(date=as.Date(c("2013-07-02","2013-08-03","2013-09-04", "2013-10-05","2013-11-06")), yr = c(2013,2013,2013,2013,2013), mo = c(07,08,09,10,11), da = c(02,03,04,05,06), plant = LETTERS[1:5], product = as.factor(letters[26:22]), rating = runif(25)) I'd like to be able to choose a date range directly from the as.Date column without using the yr , mo , or da columns. Currently, I'm subsetting by mo and it's extremely clunky at times, especially when years switch over. A

I have a table that contains categories, dates and rates. Each category can have different rates for different dates, one category can have only one rate at a given date. Id CatId Date Rate ------ ------ ------------ --------- 000001 12 2009-07-07 1 000002 12 2009-07-08 1 000003 12 2009-07-09 1 000004 12 2009-07-10 2 000005 12 2009-07-15 1 000006 12 2009-07-16 1 000007 13 2009-07-08 1 000008 13 2009-07-09 1 000009 14 2009-07-07 2 000010 14 2009-07-08 1 000010 14 2009-07-10 1 Unique index (catid, Date, Rate) I would like for each category to group all continuous dates ranges and keep only the

I got this example from one StackOverflow question that was asked but I couldn't get it work according to my need. WITH DateTable AS ( SELECT CAST('20110101' as Date) AS [DATE] UNION ALL SELECT DATEADD(dd, 1, [DATE]) FROM DateTable WHERE DATEADD(dd, 1, [DATE]) < cast('20110131' as Date) ) SELECT dt.[DATE] FROM [DateTable] dt Input- ID | FromDate | ToDate ============================= 1 | 2011-11-10 | 2011-11-12 2 | 2011-12-12 | 2011-12-14 Output - SN | Dates | ================== 1 | 2011-11-10 | 2 | 2011-11-11 | 3 | 2011-11-12 | 4 | 2011-12-12 | 5 | 2011-12-13 | 6 | 2011-12-14 | See this code

I am on the Ubuntu OS. I want to grep a word (say XYZ) inside all log files which are created within date range 28-may-2012 to 30-may-2012. How do I do that? This is a little different from Banthar's solution, but it will work with versions of find that don't support -newermt and it shows how to use the xargs command, which is a very useful tool. You can use the find command to locate files "of a certain age". This will find all files modified between 5 and 10 days ago: find /directory -type f -mtime -10 -mtime +5 To then search those files for a string: find /directory -type f -mtime -10