DataSource Controls :: Left Join 2 Data Tables?
Jan 29, 2010
I have 2 different datatables. 2 datatables from 2 different servers.
My first datatable is this:
SELECT DISTINCT a.name, a.create_date, a.Modify_Date, a.Object_Id
FROM dbname.sys.objects a
and my 2nd datatable is the same, but from a different server connection string
SELECT DISTINCT b.name, b.create_date, b.Modify_Date, b.Object_Id
FROM dbName.sys.objects b
Basically, I want to compare which procedures are on one server and not the other (dev and prod)
So after I have my 2 datatables i want to create a data relationship on the name and then do a left join to see whats in a and not b.
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Nov 19, 2010
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','_blank','toolbar=no,menubar=no'))" >
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Nov 16, 2010
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[Code]....
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I have a particular scenario where I am populating two data tables seperately. These datatables have one field which is unique. What I need is to join these two datatables on the basis of that one field and get one datatable. I do not want to merge, I need to join. And I can not join in SQL before populating the data Tables.
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[Code]....
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Sep 28, 2010
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[code]...
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Mar 5, 2011
I have two tables: Projects and ProjectsData and I want to execute query with join and get the result in the View.
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[Code]....
What I should use in the View to extract this data. I tried that:
[Code]....
but it doesn't work...
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Aug 5, 2010
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[Code]....
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[Code]....
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Mar 4, 2011
I want to get data from Projects(which have CourseId) and related CourseName from Courses table.
I have written following code:
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return View(projects.ToList());
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The model item passed into the dictionary is of type 'System.Collections.Generic.List1[<>f__AnonymousType22[ProjectManager.Models.Project,ProjectManager.Models.Course]]', but this dictionary requires a model item of type 'System.Collections.Generic.IEnumerable`1[ProjectManager.Models.Project]'.
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Sep 8, 2010
i need join 3 tables using inner join...
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Jun 23, 2010
if you have two table inner join like SELECT* From A INNER JOIN B on A.ID = B.IDSay A and B tables both have Username values but A's username is Test, and B's username is Test2When I do Eval("Username") it always print out "Test", how can I configure it to print out "Test2"... meaning how to specify which table's value to put using eval.. is there something like Eval(B.("Username"))??
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Jan 24, 2011
I need to make a category filter. For this purpose I have two tables "Ingredient" and "Category"
My Category Table looks like this:
[Code]....
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[Code]....
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[Code]....
[Code]....
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Sep 9, 2010
I was trying to find out how I can join more than 2 tables using the LINQ-to-SQL syntax. For instance, joining 2 tables in SQL:
SELECT * FROM Table1 AS T1 INNER JOIN Table2 AS T2 ON T1.Key=T2.Column1WHERE T2.Key='17';
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var Result = from T1 in DbContext.Table1 join T2 in DbContext.Table2 on T1.Key equals T2.ForeignKey where T2.Key=17 select new { T1, T2 };
But how would I join 3 or more tables using LINQ? For example:
SELECT * FROM (Table1 AS T1 INNER JOIN Table2 AS T2 ON T1.Key=T2.Column1) INNER JOIN Table3 AS T3 ON T3.Key=T2.Column2 WHERE T2.Key='37';
I've been searching and experimenting and I cannot seem to find any informraiton on this. One example I found involves putting the result for the frist join into a temp object, and then performing the second join. I'm not sure performance-wise if that's the same as doing a 3-table join directly using a single SQL statement.
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