Adjusting date range for online

Adjusting date range for online

Date Calculator – Add or subtract days, months, years Weekday Calculator – What Day is this Date? Birthday Calculator – Find when you are 1 billion seconds oldMissing: online  · 2. COUNTIF to Count Dates Older than a Fixed Date. If we want to count a range of dates that are older than a fixed than then we have to use the Less Than (date in the Criteria argument. Assuming hare, we want to find out the number of purchase dates before 5/1/ �� Steps: In Cell H15, we have to type  · Step through the wizard to configure a date range within the Organizer Topic. In R55 and later, after configuring a new date range you will automatically be prompted to assign Missing: online

How to change the date range of a dashboard?

This article describes my solution on how to keep date ranges non-overlapping. I will use SQL instead of pseudo code to make the code practical but it should be easy to code it using a different language. One way of storing temporal or time-based data is by assigning it a date range.

An example is a table of product price. The price is stored with the date range when that price is effective. A common problem with date ranges is how to keep it non-overlapping. Like for the sample product price table, adjusting date range for online, the data, in this case the price, will be ambiguous if there are two ranges that overlap. If the table contains a record Jan 1, Jan 30,10USD; and another record Jan 15, Mar 31,15USD; what will be the price for Jan 16, ?

A strategy will be to disallow entry of a range if it will overlap with an existing one. This means existing ranges will need to be manually adjusted first before the new data can be entered.

This will be at least cumbersome and at worst error-prone. My assumption is that the entered data is more valid than the existing ones so users should not trouble themselves with adjustments. My preferred strategy then is to allow the entry of the range that will overlap UIautomate the adjustments SQLthen insert the entered range SQL. So how do we do this?

If we look at the dates, we will see that the new range will overlap all of the existing ranges but not quite in the same way. This is true for A. The range is no longer valid but for the start up to the new range start - 1 so the end will be adjusted.

Note that the code below assumes that the code above has already run. If not, then we will need to adjust the where condition to explicitly exclude ranges that also have their starts within the new range.

Note that this also assumes that it will be used with the code above. If not, then ranges that also end within the new range must be excluded.

Now what if the new range is within an existing one? Let's start with the data above and work on the data below. This range F is within the previously added range E.

This will make the middle dates invalid. We can correct this by splitting the date range E to two, using a middle point within the new range, then apply cases 2 and 3. Or we can do the following. The attached zip file contains all the queries from creating the table to selecting the resulting adjusting date range for online. For actual use, I recommend creating a stored procedure with the new range and data as parameters.

I'm sure that this was tackled before for it is not really a new problem, but I did not find any similar articles or I was not savvy at searching :.

Feel free to point me to a link if you find anything related. Some DBAs might prefer marking data for deletion rather than permanently deleting them, i. While others might prefer keeping invalidated data as historical data. Another solution that comes to mind that allows for historical data is to allow overlaps and just record the date of entry.

I think this will be sufficient to get the latest price, i. the matching range with the latest entry date, but I will leave that for another article. This article, along with any associated source code and files, is licensed under The Code Project Open License CPOL. General News Suggestion Question Bug Answer Joke Praise Rant Admin. Sign in Email. Forgot your password? Search within: Articles Quick Answers Messages. Tagged as Adjusting date range for online Stats Auto Adjusting Date Ranges on Entry of a New Range using SQL.

acarpio Rate me:. Please Sign up or sign in to vote. Given date ranged data, adjust existing ranges on entry of a new ranged data. Download source - B Introduction This article describes my solution on how to keep date ranges non-overlapping.

The Problem One way of storing temporal or time-based data is by assigning it a date range. A Solution A strategy will be to disallow entry of a range if it will overlap with an existing one, adjusting date range for online. My Preferred Solution My assumption is that the entered data is more valid than the existing ones so users should not trouble themselves with adjustments.

Sample Data Let's start with a sample table: SQL. Software Developer. This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do adjusting date range for online programming. First Prev Next Excellent zzejazz Jan acarpio 3-Nov kamalesh Sep acarpio Sep Marufuzzaman 6-Oct Thanks Md.

I will not say I have failed times; I will say that I have discovered ways that can cause failure — Thomas Edison. acarpio 6-Oct Go to top. Permalink Advertise Privacy Cookies Terms of Use. Layout: fixed fluid. Article Copyright by acarpio Everything else Copyright © CodeProjectadjusting date range for online, Web02 2, adjusting date range for online. First Prev Next. Excellent zzejazz Jan Great article exactly what i was looking for.

Re: Excellent acarpio 3-Nov nice to know. My vote of 1 kamalesh Sep very bad article. Re: My vote of 1 acarpio Sep thank you for reading.

i would appreciate if you tell me why you find this bad. Re: My vote of 1 Md. You are considering start date at the same time you also insert the end date same date format Re: My vote of adjusting date range for online acarpio 6-Oct Marufuzzaman, If you would point me to the code maybe i can clear it up for you.

Or if you have any suggestions to make my article clearer, feel free to give them. Last Visit: Dec Last Update: Sep

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Auto Adjusting Date Ranges on Entry of a New Range using SQL - CodeProject

 · If you have another date field that serves to make the Start and End date range valid, such as an [Incident Date] that happened between them, you could use that instead of  · 2. COUNTIF to Count Dates Older than a Fixed Date. If we want to count a range of dates that are older than a fixed than then we have to use the Less Than (date in the Criteria argument. Assuming hare, we want to find out the number of purchase dates before 5/1/ �� Steps: In Cell H15, we have to type Date Calculator – Add or subtract days, months, years Weekday Calculator – What Day is this Date? Birthday Calculator – Find when you are 1 billion seconds oldMissing: online