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Collapsing records with adjacent start and end dates


Collapsing records with adjacent start and end dates

By : user2955357
Date : November 22 2020, 10:38 AM
I wish this helpful for you Since your ranges are continuous, the problem essentially becomes a one. © Andriy M
to Steve Ford for the table:
code :
declare @EventLog table
(
    Id          int,
    Code        tinyint,
    StartDate   date,
    EndDate     date null
)

insert into @EventLog
values
(10001,     3,       '2014-07-25',    '2014-07-28'),
(10001,     3,       '2014-07-29',    '2014-10-06'),
(10001,     3,       '2014-10-07',    '2014-10-10'),
(10001,     1,       '2014-10-11',    '2014-10-31'),
(10001,     1,       '2014-11-01',    '2014-11-15'),
(10001,     3,       '2014-11-16',    '2014-11-25'),
(10001,     3,       '2014-11-26',     null),
(20002,     3,       '2014-07-25',    '2014-07-28'),
(20002,     3,       '2014-07-29',    '2014-10-06'),
(20002,     3,       '2014-10-07',     null),
(30003,     3,       '2014-07-25',    '2014-11-13'),
(30003,     3,       '2014-11-14',    '2014-11-24'),
(30003,     2,       '2014-11-25',    null);
declare @MaxDate date = '9999-12-31';

with cte as 
(
    select *,
      g = row_number() over (partition by Id        order by StartDate)
        - row_number() over (partition by Id, Code  order by StartDate)   
    from @EventLog
)
select
    Id, 
    Code,
    StartDate   = min(StartDate),
    EndDate     = nullif(max(isnull(EndDate, @MaxDate)), @MaxDate) 
from cte
group by
    Id, Code, g;


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Get-WinEvent start and end dates not filtering records

Get-WinEvent start and end dates not filtering records


By : Vin Pallone
Date : March 29 2020, 07:55 AM
will help you The error in your script is the type of your start and end date/time - they are declared as arrays.
Change
code :
[System.DateTime[]]$EventStartDate = (((Get-Date).addDays(-2)).date)
[System.DateTime[]]$EventEndTime = (Get-Date)
[System.DateTime]$EventStartDate = (((Get-Date).addDays(-2)).date)
[System.DateTime]$EventEndTime = (Get-Date)
$EventStartDate = (((Get-Date).addDays(-2)).date)
$EventEndTime = (Get-Date)
Query to find records where a date is between start and end dates, where the dates might be reset to 0

Query to find records where a date is between start and end dates, where the dates might be reset to 0


By : AiR
Date : March 29 2020, 07:55 AM
help you fix your problem We have weekly recurring events in our application, and have decided to store the start and end times for each event as the number of seconds from the beginning of the week (Sunday 12am). This makes querying, sorting, etc. much easier. , You can try something like:
code :
select * from events 
   where (start_time <= 3600 or start_time>end_time) and end_time > 3600; 
searching records between start date and end dates for ransack

searching records between start date and end dates for ransack


By : Thippani Manjula
Date : March 29 2020, 07:55 AM
will be helpful for those in need You can use range with starting date and end date. Then you can get search result between the dates. Here is the sample code in your search form:
code :
<div class="control-group">
    <%= f.label :scrap_date_cont, "Scrap Date", class: 'control-label' %>
    <div class="controls">
      <% if q.scrap_date_cont.blank? %>
    <%= f.text_field :scrap_date_cont, include_blank: true, default: nil, :class => 'datepicker3', :style=>"width:100px;" %> 
      <% elsif !q.scrap_date_cont.blank? %>
      <%= f.text_field :scrap_date_cont, :value => "#{change_date_format_for_edit_page(q.scrap_date_cont)}", :class => 'datepicker3', :style=>"width:100px;" %> 
      <% end %>&nbsp;<%= link_to "Select Range", "#", :id => 'dates' %> 

    </div>
  </div>


     <div class="control-group" id="range" style="display:none" >
        <%= f.label :scrap_date_gteq, "Range", class: 'control-label' %>

        <div class="controls">
          <% if q.scrap_date_gteq.blank? %>
          <%= f.text_field :scrap_date_gteq, include_blank: true, default: nil, :class => 'datepicker1', :style=>"width:100px;" %>
          <% elsif !q.scrap_date_gteq.blank? %>
          <%= f.text_field :scrap_date_gteq, :value => "#{change_date_format_for_edit_page(q.scrap_date_gteq)}", :class => 'datepicker1', :style=>"width:100px;" %> 
          <% end %>

           <% if q.scrap_date_lteq.blank? %>
          <%= f.text_field :scrap_date_lteq, include_blank: true, default: nil, :class => 'datepicker2', :style=>"width:100px;"  %>
           <% elsif !q.scrap_date_lteq.blank? %>
           <%= f.text_field :scrap_date_lteq, :value => "#{change_date_format_for_edit_page(q.scrap_date_lteq)}", :class => 'datepicker2', :style=>"width:100px;" %> 
           <% end %>
        </div>
      </div>
params[:q][:scrap_date_cont] = change_date_format(params[:q][:scrap_date_cont]) if !(params[:q][:scrap_date_cont]).blank?
    params[:q][:scrap_date_cont] =  params[:q][:scrap_date_cont].to_date.strftime("%d/%Y/%m") if !(params[:q][:scrap_date_cont]).blank?
    params[:q][:scrap_date_gteq] = change_date_format(params[:q][:scrap_date_gteq]) if !(params[:q][:scrap_date_gteq]).blank?
    params[:q][:scrap_date_gteq] =  params[:q][:scrap_date_gteq].to_date.strftime("%d/%Y/%m") if !(params[:q][:scrap_date_gteq]).blank?
       params[:q][:scrap_date_lteq] = change_date_format(params[:q][:scrap_date_lteq]) if !(params[:q][:scrap_date_lteq]).blank?
     params[:q][:scrap_date_lteq] =  params[:q][:scrap_date_lteq].to_date.strftime("%d/%Y/%m") if !(params[:q][:scrap_date_lteq]).blank? 
#Change date format in edit time
 def change_date_format_for_edit_page(date)
    new_date = date.strftime("%m/%d/%Y")
    puts new_date.inspect
    return new_date
  end
$("#dates").click(function () {
  var $that = $(this);
  $("#range").toggle("slow", function() {
    $that.toggleClass("toggled-off");
  });
});
How to Duplicate Records According to Start and End Dates

How to Duplicate Records According to Start and End Dates


By : Walter Weidner
Date : March 29 2020, 07:55 AM
will help you You can use a recursive CTE in both SQL Server and Postgres, but the syntax is slightly different. And, there is a simpler method in Postgres. So, in SQL Server, you can do:
code :
with cte as (
      select username, startdate, weekday, enddate
      from t
      union all
      select username, dateadd(day, 1, startdate) weekday, enddate
      from cte
      where startdate < enddate
     )
select username, startdate, weekday
from cte
order by username, startdate;
select t.username, g.startdate, t.weekday
from t, lateral
     generate_series(start_date, end_date, interval '1 day') g(startdate);
with digits as (
      select v.n
      from (values (0), (1), (2), (3), (4), (5), (6), (7), (8), (9)) v(n)
     ),
     n as (
      select d1.n * 100 + d2.n * 10 + d3.n as n
      from digits d1 cross join digits d2 cross join digits d3
     )
select t.username, t.startdate + n.n, t.weekday
from t join
     n 
     on t.startdate + n.n <= t.enddate;
How can I dynamically filter records by start and end dates in SQL?

How can I dynamically filter records by start and end dates in SQL?


By : user3115017
Date : March 29 2020, 07:55 AM
Does that help I have a table lets call it users that has user ids and corresponding start and end dates: , Do a JOIN instead of a IN:
code :
SELECT p.*
FROM `purchases` p
JOIN `users` u
ON p.userId = u.userId
AND p.purchase_date BETWEEN u.start AND u.end
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