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c# Programming Glossary: joinWhat is the syntax for an inner join in linq to sql? http://stackoverflow.com/questions/37324/what-is-the-syntax-for-an-inner-join-in-linq-to-sql is the syntax for an inner join in linq to sql I'm writing a linq to sql statement I'm just.. I'm just after the standard syntax for a normal inner join with an 'on' clause in C#. ie how do you represent this in LINQ.. you represent this in LINQ to SQL select from table1 inner join table2 on table1.field table2.field EDIT Real query to get all..
LINQ to SQL: Return anonymous type? http://stackoverflow.com/questions/534690/linq-to-sql-return-anonymous-type DogDataContext ConnectString var result from d in db.Dogs join b in db.Breeds on d.BreedId equals b.BreedId select d return.. DogDataContext ConnectString var result from d in db.Dogs join b in db.Breeds on d.BreedId equals b.BreedId select new .. DogDataContext ConnectString var result from d in db.Dogs join b in db.Breeds on d.BreedId equals b.BreedId select new DogWithBreed..
Inner join of DataTables in C# http://stackoverflow.com/questions/665754/inner-join-of-datatables-in-c-sharp join of DataTables in C# Let T1 and T2 are DataTable s with following.. fields T1 CustID ColX ColY T2 CustID ColZ I need the joint table TJ CustID ColX ColY ColZ How this can be done in C# code.. this can be done in C# code in a simple way Thanks. c# join datatable inner join share improve this question If you..
LINQ - Left Join, Group By, and Count http://stackoverflow.com/questions/695506/linq-left-join-group-by-and-count . Here's what I got so far from p in context.ParentTable join c in context.ChildTable on p.ParentId equals c.ChildParentId.. improve this question from p in context.ParentTable join c in context.ChildTable on p.ParentId equals c.ChildParentId..
Create code first, many to many, with additional fields in association table http://stackoverflow.com/questions/7050404/create-code-first-many-to-many-with-additional-fields-in-association-table to create a many to many relationship with a customized join table. In a many to many relationship EF manages the join table.. join table. In a many to many relationship EF manages the join table internally and hidden. It's a table without an Entity.. without an Entity class in your model. To work with such a join table with additional properties you will have to create actually..
LINQ to SQL - Left Outer Join with multiple join conditions http://stackoverflow.com/questions/1122942/linq-to-sql-left-outer-join-with-multiple-join-conditions to LINQ SELECT f.value FROM period as p LEFT OUTER JOIN facts AS f ON p.id f.periodid AND f.otherid 17 WHERE p.companyid.. 17 EDIT Why is the AND f.otherid 17 condition part of the JOIN instead of in the WHERE clause Because f may not exist for some.. If the condition is applied in the WHERE clause after the JOIN then I don't get the behaviour I want. Unfortunately this from..
SQL Query slow in .NET application but instantaneous in SQL Server Management Studio http://stackoverflow.com/questions/2736638/sql-query-slow-in-net-application-but-instantaneous-in-sql-server-management-st tal.TrustAccountValue FROM TrustAccountLog AS tal INNER JOIN TrustAccount ta ON ta.TrustAccountID tal.TrustAccountID INNER.. ta ON ta.TrustAccountID tal.TrustAccountID INNER JOIN Users usr ON usr.UserID ta.UserID WHERE usr.UserID 70402 AND.. tal.trustaccountlogid FROM TrustAccountLog AS tal INNER JOIN TrustAccount ta ON ta.TrustAccountID tal.TrustAccountID INNER..
Fastest method for SQL Server inserts, updates, selects http://stackoverflow.com/questions/2862428/fastest-method-for-sql-server-inserts-updates-selects query return Retrieve @ SELECT c. FROM ParentTable p INNER JOIN ChildTable c ON c.ParentID f.ID WHERE f.ID @ParentID delegate.. Foo.FooFactory @ SELECT c. FROM ParentTable p INNER JOIN ChildTable c ON c.ParentID f.ID WHERE f.ID @ParentID delegate..
http://stackoverflow.com/questions/3404975/left-outer-join-in-linq OUTER JOIN in LINQ How to perform left outer join in C# LINQ to objects..
How do you perform a CROSS JOIN with LINQ to SQL? http://stackoverflow.com/questions/56547/how-do-you-perform-a-cross-join-with-linq-to-sql do you perform a CROSS JOIN with LINQ to SQL How do you perform a CROSS JOIN with LINQ.. a CROSS JOIN with LINQ to SQL How do you perform a CROSS JOIN with LINQ to SQL c# linq linq to sql cross join share improve..
linq to entities doesn't recognize a method http://stackoverflow.com/questions/5845993/linq-to-entities-doesnt-recognize-a-method your code means something like SELECT COUNT FROM ... LEFT JOIN ... WHERE IsMatch .... Because EF validates function names passed..
LINQ - Left Join, Group By, and Count http://stackoverflow.com/questions/695506/linq-left-join-group-by-and-count p.ParentId COUNT c.ChildId FROM ParentTable p LEFT OUTER JOIN ChildTable c ON p.ParentId c.ChildParentId GROUP BY p.ParentId..
LINQ to SQL - Left Outer Join with multiple join conditions http://stackoverflow.com/questions/1122942/linq-to-sql-left-outer-join-with-multiple-join-conditions to SQL Left Outer Join with multiple join conditions I have the following SQL which..
How to join int[] to a character separated string in .NET? http://stackoverflow.com/questions/145856/how-to-join-int-to-a-character-separated-string-in-net question var ints new int 1 2 3 4 5 var result string.Join ints.Select x x.ToString .ToArray Console.WriteLine result prints.. advertise usage of StringBuilder. Someone complaints that Join method should take an IEnumerable argument. I'm going to disappoint.. IEnumerable argument. I'm going to disappoint you String.Join requires array for a single reason performance. Join method..
http://stackoverflow.com/questions/1722896/vb-to-c-sharp-functions UCase LCase Left Right RTrim LTrim Trim Mid Replace Split Join MsgBox IIF c# vb.net operators vb.net to c# share improve.. start length Replace string .Replace Split string .Split Join String.Join MsgBox MessageBox.Show IIF boolean_condition true.. Replace string .Replace Split string .Split Join String.Join MsgBox MessageBox.Show IIF boolean_condition true false Notes..
http://stackoverflow.com/questions/204505/preserving-order-with-linq are yielded in the order they appear in source. GroupJoin GroupJoin preserves the order of the elements of outer and for.. yielded in the order they appear in source. GroupJoin GroupJoin preserves the order of the elements of outer and for each element.. of outer the order of the matching elements from inner. Join preserves the order of the elements of outer and for each of..
What guarantees are there on the run-time complexity (Big-O) of LINQ methods? http://stackoverflow.com/questions/2799427/what-guarantees-are-there-on-the-run-time-complexity-big-o-of-linq-methods and provide the same key to both I could see GroupBy and Join using either sorting or hashing. Which is it Contains would.. this operation is O 1 instead of O N . Distinct GroupBy Join and I believe also the set aggregation methods Union Intersect..
Join and Include in Entity Framework http://stackoverflow.com/questions/416847/join-and-include-in-entity-framework and Include in Entity Framework I have the following query..
http://stackoverflow.com/questions/525194/linq-inner-join-vs-left-join Inner Join vs Left Join Using extension syntax I'm trying to create a.. Inner Join vs Left Join Using extension syntax I'm trying to create a left join using.. null data filled in for the missing elements. i.e. a Left Join. Is this possible Person magnus new Person Name Hedlund Magnus..
Finding common columns from two datatable and using those for Join condition in LINQ http://stackoverflow.com/questions/5259711/finding-common-columns-from-two-datatable-and-using-those-for-join-condition-in common columns from two datatable and using those for Join condition in LINQ I have two Data Tables and these are completely.. These would be generated at runtime. Now I want to Join these tables by finding the common columns. Kindly check below.. code for further information public DataTable DataTableJoiner DataTable dt1 DataTable dt2 using DataTable targetTable dt1.Clone..
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible? http://stackoverflow.com/questions/5307731/linq-to-sql-multiple-joins-on-multiple-columns-is-this-possible like this Select t1.ID t2.ID t3.ID From TABLE_1 t1 Left Join TABLE_1 t2 On t1.ColumnA t2.ColumnA And t1.ColumnB t2.ColumnB.. And t1.ColumnB t2.ColumnB And t1.ColumnC t2.ColumnC Left Join TABLE_1 t3 On t2.ColumnA t3.ColumnA And t2.ColumnB t3.ColumnB.. left join multiple columns share improve this question Joining on multiple columns in Linq to SQL is a little different...
http://stackoverflow.com/questions/5489987/linq-full-outer-join Full Outer Join I have a list of people's ID and their first name and a list.. lame and have found quite a few solutions for 'LINQ Outer Joins' which all look quite similar but really seem to be left outer.. attempts so far go something like this private void OuterJoinTest List FirstName firstNames new List FirstName firstNames.Add..
LINQ - Left Join, Group By, and Count http://stackoverflow.com/questions/695506/linq-left-join-group-by-and-count Left Join Group By and Count Let's say I have this SQL SELECT p.ParentId..
?? Null Coalescing Operator --> What does coalescing mean? http://stackoverflow.com/questions/770186/null-coalescing-operator-what-does-coalescing-mean word and I understand it to be a synonym for 'join'. 'Null Join Operator' still doesn't make sense. Can someone enlighten me..
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