sql server 2005 - SQL Pivot based on value between two columns -

-

I have a table in which I have two columns, among other things, for a start date and the other end date for. I have to write a question which will return a column for each month of the year and the value of that column is 1 if the month is between 0. PIVOT statement What I see here, but best I can tell PIVOT section is looking to match values, do not check that the value is between the other two or not Whether the PIBT clause is constructed correctly Or do I need to break and write details of 12 cases and then add them?

I think there are three basic steps I get here:

  1. Get a date in every 12 months
  2. Check whether this date is between start and end date
  3. The result of PIVOT
< P> To get 12 dates, one for each month, I have a few recursive with a statement to create a temporary table with 1 column of 12 dates Used as the date (date) as the date (date) of the month (date) (select date) Unius Select date from all months (month, 1, date) where the data (month, date, Date) & lt; 12)

From here I can include this table with the table which I really care about. Then I use the date where any entry starts and ends to start not related to that month. Then select something like this: 

  Join the titles, month (months) cross, where others during the months. Start and other .end

In this phase, we should be careful that we select only the columns, which will result in the desire to become extinct, or that will be collected using the PVOT statement. Finally, we should get the result: 

  PIVOT (for PID) IN IN ([1], [2], [3], [ 4], [5], [6], [7], [8], [9], [10], [11], [12])

Something can look like:

) Select Unisense as the date (select date) Month month (month, 1, date) where statistics (month, date, date) & lt ; 12) Selection title, [1] as of January, [2] as of February, [3] AS April, [5] AS May, [6] June, [7] as of July, [ 8] As of August, [9] as September [10] as of October, [10] [11] AS Nov, [12] from AS December (SELECT ot him. Title, mohnt (months) cross second Join in, sub-sequential PIVOT (maximum (PID)) [4], [5] for the date of ([1], [2], [3] in the form of other start dates and other. , [6], [7], [8], [9], [10], [11], [12]) ASP

I have snatched all the other complications that I went through to include other information , So I have not really written this question, but must be taught the original query structure, which was the result I needed.


Comments

Post a Comment

Popular posts from this blog

c++ - Linux and clipboard -

-
After selecting the copies of the buffer in Linux, after the text, we can click and paste the button between the mouse. I think there is a special buffer for this, I want to use it. Programming Language: C ++ Your Library: Qt Thanks. There is just one more correct answer than Paul Dixon, which answers your needs: / P > QClipboard * clipboard = QApplication :: clipboard (); CastString Selected Text = Clipboard-> Text (QClipboard :: Selection);
Read more

What is expire header and how to achive them in ASP.NET and PHP? -

-
I have examined the performance statistics of my website today. I have received a warning (or error may occur) that is given below Add Terminal Headers Here are 15 static components without a 15-futures end date * (no end) Http://www.example.com/video/css/global.css * (no time limit) http://www.example.com/video/js/global.js * (no expiration ) Http: //www.example.com/video/images/main-bg.png what it means and how to achieve it both in PHP and ASP.Net. I am on a shared hosting server, so please tell me some ways to use the code, because I can not make any modifications at the end of the server. If I expire the header, then there is no chance that if I make changes to the CSS, then the user will not be able to remove them immediately because CSS and other files have a fixed time limit (1 month, week ) Are cached for. Is Is there any harm to using PHP? $ time = time () + 3 * 24 * 60 * 60; // 3 day headings ('End:'. GMDAT ('D, D MYH: i: s \ g \ m \ t',
Read more

sql server - How can I determine which of my SQL 2005 statistics are unused? -

-
After a few years, one of my biggest databases has deposited 73 figures out of its largest tables. With Indexes, I can run many types of reports and queries, how often / heavily specific indexes are used. What is an equivalent for data? We are running SQL 2005. To make statistics automatically managed and honest, I would like to "update statistics", "create statistics" and There is no information about any management except "drop statistics" orders. In theory, UPDATE should handle the addition and removal of statistical data. In addition, I've never heard about the amount of storage or storage taking in large amounts, so I'm not sure whether there is any reason for the alarm or not. If you are seeing a potential problem, then I would suggest running an update before, if it does not clean it, it is leaving and then it appears to be safe operation (because it is the only query optimizer Is for). I will not leave "left" in the
Read more