date-range

问题 I have a booking database with various dates for each booking. I want to get a count of all bookings in each month e.g. JAN | 12 FEB | 15 MAR | 53 APR | 25 If I have zero bookings in a month, how can I still get the month listed? e.g.: JAN | 12 FEB | 15 MAR | 53 APR | 0 MAY | 52 Schema: ID | BookingDate | REF I don't have or want to have a months table to join against. Below is my query so far: SELECT TOP 1000 [Id] ,[MemberId] ,[LocationId] ,[Date] ,[BookingStateId] ,[RPEFeeling] ,[RPEPush] ,

问题 hoping someone can help? I'm fairly new to Access 2016 and have been tasked with building a very simple booking system for our school's breakfast and after school clubs. I have a table with a list of Children (primary key is ChildID), another table (CLUBS) lists the 5 clubs available, and a third table (BOOKINGS) connects the children to the clubs (ChildID, ClubID, DateRequested) I have a simple form that enables me to select a child's name from a drop down box, then from a list choose a club

问题 This question might be similar to: Determine Whether Two Date Ranges Overlap Multiple Date range comparison for overlap: how to do it efficiently? But, how can I get the maximum number of overlapping date ranges? (preferably in C#) Example: (from - to) 01/01/2012 - 10/01/2012 03/01/2012 - 08/01/2012 09/01/2012 - 15/01/2012 11/01/2012 - 20/01/2012 12/01/2012 - 14/01/2012 Result = 3 maximum overlapping date ranges Solution : Possible implementation of the solution proposed by @AakashM List

问题 I have one Date column, formatted '17/03/2012'. I would like to be able select a start and end date and if the 1 date column above is within this date range it will filter the column. Below is the code im using: Start Date: <input type="text" id="dateStart" name="dateStart" size="30"> End Date: <input type="text" id="dateend" name="dateend" size="30"> <script type="text/javascript" charset="utf-8"> $.fn.dataTableExt.afnFiltering.push( function( oSettings, aData, iDataIndex ) { var iFini =

问题 I'm trying to adapt the brewer example (http://docs.bokeh.org/en/latest/docs/gallery/stacked_area.html) to my needs. One of the things I'd like is to have dates at the x-axis. I did the following: timesteps = [str(x.date()) for x in pd.date_range('1950-01-01', '1951-07-01', freq='MS')] p = figure(x_range=FactorRange(factors=timesteps), y_range=(0, 800)) p.xaxis.major_label_orientation = np.pi/4 as an adaptation of the previous line p = figure(x_range=(0, 19), y_range=(0, 800)) The dates are

问题 I'm using JavaScript. I have an array that contains data in this format: [ {"USER_NAME":"User1","LAST_SUCCESSFUL_CONNECT":"1373978337642"}, {"USER_NAME":"User2","LAST_SUCCESSFUL_CONNECT":"1374515704026"}, {"USER_NAME":"User3","LAST_SUCCESSFUL_CONNECT":"1374749782479"} ] (the numbers above represent UTC date/time in milliseconds. I would like to group (count) the data by month. Something like this: [ {"Month":"January, 2014","User_Count": 2}, {"Month":"February, 2014","User_Count": 1}, ] I

问题 In C# 3.0, how do I get the seconds since 1/1/2010? 回答1: Goes like this: TimeSpan test = DateTime.Now - new DateTime(2010, 01, 01); MessageBox.Show(test.TotalSeconds.ToString()); For one liner fun: MessageBox.Show((DateTime.Now - new DateTime(2010, 01, 01)) .TotalSeconds.ToString()); 回答2: You can substract 2 DateTime instances and get a TimeSpan: DateTime date = new DateTime(2010,1,1); TimeSpan diff = DateTime.Now - date; double seconds = diff.TotalSeconds; 回答3: Just to avoid timezone issues

问题 I created a date range picker using jquery ui where you can use the same inline calendar to make both of your date selections. See my fiddle here: http://jsfiddle.net/kVsbq/4/ JS $(".datepicker").datepicker({ minDate: 0, numberOfMonths: [12, 1], beforeShowDay: function (date) { var date1 = $.datepicker.parseDate($.datepicker._defaults.dateFormat, $("#input1").val()); var date2 = $.datepicker.parseDate($.datepicker._defaults.dateFormat, $("#input2").val()); return [true, date1 && ((date

问题 I have two date ranges where each range is determined by a start and end date (obviously, datetime.date() instances). The two ranges can overlap or not. I need the number of days of the overlap. Of course I can pre-fill two sets with all dates within both ranges and the perform a set intersection but this is possibly inefficient...is there a better way apart from another solution using a long if-elif section covering all cases ? 回答1: Determine the latest of the two start dates and the

问题 Is this correct? SELECT * FROM contract JOIN team USING (name_team) JOIN player USING(name_player) WHERE name_team = ? AND DATE_PART('YEAR',date_join)>= ? AND DATE_PART('YEAR',date_leave)<= ? My table contract has the player name, team name and the dates when he joined and left the club. I want to make a function listing all players that were on the team in specific years. The above query doesn't seem to be working ... 回答1: Why not use between without the date part thing: WHERE datefield