DataSource Controls :: How To Write Query Using Pivot Logic In Sql Server 2005
Jan 7, 2010
i have a table for customer forecast which contains customer, week number and quantit as columns. now i need to write query and list the week as column for each customer and each cell should have a quantity. how to write query for this using pivot logic. i dont want to use cursor.
I have a table that could look like the left table in the following picture, but i want to present it as the right table in the picture. http://pici.se/549963/?size=fullsize
So i've found out that i could use pivots to do this, but am having some trouble getting it to work, so if you know how to do this.
I tried to develop a dynamic pivot query with following code to avoid hard coding. I can got the 'Q1, Q2, Q3, Q4' dynamically and assigned to @(@quarter. But it cannot be passed to the pivot query.
I am using following pivot query but not getting result as single row getting as 4 rows.
One more problem i am unable to pass dates as parameters to storeprocedure something like this
select [@date] .
SELECT 'Forecasted' AS HeadCount, [8/1/2010], [8/8/2010], [8/15/2010], [8/22/2010] FROM (SELECT * FROM TblEmpCount) AS SourceTable PIVOT ( SUM(EmpCount) FOR StartDate IN ([8/1/2010], [8/8/2010], [8/15/2010], [8/22/2010]) ) AS PivotTable;
I am getting result as 4 rows but i want result in single row like this
I am designing a social networking site that has a "wall" feature like the others out there today. The database has an alerts table that stores some user action worthy of sharing with his friends. For example, when a user updates his status, all of his friends are notified. The below table shows two status updates from two unique users. The first (AlertId 689 and 690) is submitted by AccountId 53. Since he has one frinend - AccountId 57 - that row is added to the table so when this user logs on, he will see Account 53's update on his wall. In the same manner, the other user's status update has four rows because he has three friends.
[AlertId] [AccountId] [CreateDate] [Timestamp] [AlertTypeId] [IsHidden] [Body] 689 57 2010-08-10 0x0000000000018725 10 0 HTML 690 53 2010-08-10 0x0000000000018726 10 0 HTML 691 53 2010-08-10 0x000000000001872B 10 0 HTML 692 52 2010-08-10 0x000000000001872C 10 0 HTML 693 51 2010-08-10 0x000000000001872D 10 0 HTML 694 57 2010-08-10 0x000000000001872E 10 0 HTML
Now, a user can comment on any given item, in this case a statusupdate. When AddComment is submitted, we are using ObjectRecordId (which is the primary key of the alert being commented on) in order to identify which statusupdate is being commented on (fyi - the objectId tells us its a statusupdate):
public void AddComment(string comment) { if (_webContext != null) { var c = new Comment { Body = comment, CommentByAccountId = _webContext.CurrentUser.AccountId, CommentByUserName = _webContext.CurrentUser.UserName, CreateDate = DateTime.Now, SystemObjectId = _view.ObjectId, SystemObjectRecordId = _view.ObjectRecordId }; _commentRepository.SaveComment(c); } _view.ClearComments(); LoadComments(); }
Now, the problem is that when a user wants to comment on a friend's status update, he will be using the AlertId (or ObjectRecordId in the Comments table) corresponding to his account in the alerts table. The result is that comments are only viewable by the commenter and none of his friends:
Of course the solution to this is to do something similar to what I did in the alerts table - when somebody makes a comment, make a corresponding row for every friend in the comments table. But how do I access the AlertIds of all of my friend's status updates in the Alerts table and map them to the ObjectRecordId column in the comments table? Since I can only access the status updates corresponding to my account (and their corresponding alertids), I don't know what the alertids are for the same statusupdate in my friend's accounts.
i had the sql 2008 enterprise and i want to go back to sql server 2005 because in 2008 i created new database but when i did some changes in the table , it gave me an eror that i cant save thins and i need to creat new one if some one know what i'm talking aboutif not i need the sql server installation tutorial i tried by myself but probebly i did it wrong and now i cant connect well to the sql
I have the following code which writes to a Gridview:
[Code]....
Using the same methods of connecting to the database, how can I amend this code to write the result of a second query (which only returns a number) to a label?
Need to figure out the correct way to do a simple SUM function in Linq, but also manipulate one of the feilds coming back by doing a Substring on it, here is the original SQL query:
i have a table for customer forecast with following fields.. customer, year, week, quantity. now i need to write the SP to retrive the records based on the from week,year and to week,year... like this... from 45th week of 2009 to 25th week of 2010. how can write the query...
I am working on a project where in one SQL query i am using joins to fetch data from diffrent tables. The execution time of the query is 20 seconds for 80 rows on my local server. How can i optimize this.
I have couple of DDL's which let user choose couple of different values from it. Once the user has made his selection he clicks on the "Submit" buttion which redirects the user to the other page, which then displays table from backend SQL DB. The pages are named Page1.aspx and Page2.aspx resp. I am using Querystring to carry forward the values of the DDL's to Page2.aspx.
How can i modify the query in such a way that even if one of the DDL's is left blank the Query would ignore that and shall produce the table considering value of DDL2 in the where clause. In case both the DDL's are empty then the query will not have a where clause and shall showcase the complete table as such. I've written a query for this but it's not working the way it shoul.Here is my code for the SQLDataSource: [Code]....
By right clicking on my database i created a query in server explorer. But where are this query stored can't find them back. I should aspect that their is a folder query's like there is a folder tables but this isn't the case.