How to Union two tables in linq?
How to Union two tables in linq?
You can do it in a Linq Union query: var infoQuery = (from paid in db. MemberDuesPaid select new MemberTransaction() { BatchNo = paid. BatchNo, TranDate = paid.
How to use Union all in linq?
Paste the following into the query pane and run it: string[] jedi = { “These”, “are”, “not” }; string[] mindtrick = { “not”, “the”, “droids…” }; // Union of jedi with mindtrick var union = (from word in jedi select word). Union (from word in mindtrick select word); // Print each word in union union.
What does Linq Union do?
The LINQ Union Method in C# is used to combine the multiple data sources into one data source by removing the duplicate elements.
What is Union all in SQL?
The SQL UNION ALL operator is used to combine the result sets of 2 or more SELECT statements. It does not remove duplicate rows between the various SELECT statements (all rows are returned). Each SELECT statement within the UNION ALL must have the same number of fields in the result sets with similar data types.
Does LINQ Union remove duplicates?
Linq, acts upon 2 collections. It returns a new collection that contains the elements that are found. Union removes duplicates. So this method can be thought of as two actions: it combines the two collections and then uses Distinct() on them, removing duplicate elements.
Which is better UNION or UNION all?
SQL Union All Operator Overview The SQL Union All operator combines the result of two or more Select statement similar to a SQL Union operator with a difference. The only difference is that it does not remove any duplicate rows from the output of the Select statement.
How do I join two tables without duplicates?
What is the advantage of LINQ in C#?
Advantages of Using LINQ LINQ offers a common syntax for querying any type of data sources. Secondly, it binds the gap between relational and object-oriented approachs. LINQ expedites development time by catching errors at compile time and includes IntelliSense & Debugging support. LINQ expressions are Strongly Typed.
How to create Union all on two tables in LINQ?
You can do a UNION operation using the Union operator. UNION ALL is equivalent to the Concat operator. In order to use them, you’ll have to project the data from each table into the same data type. var query = (from x in db.Table1 select new {A = x.A, B = x.B})
What are the fields of a LINQ Union?
I will now try to create a linq union. I have two views, MemberDuesPaid and MemberDuesOwed. They have the same fields in both; (BatchNo, TranDate, DebitAmount, CreditAmount, ReceiptNo, CheckNo, SocSecNo).
When to use the LINQ Union method in C #?
The DataSource 1 contains elements such as 1, 2, 3, 4, 5, 6 and the DataSource 2 contains elements such as 1, 3, 5, 8, 9, and 10. If we want to retrieve all the elements from both the collections by removing the duplicate element then we need to use the LINQ Union method.
Why is UK displayed twice in LINQ Union?
As you can see it displays the country “UK” twice. This is because the default comparer that is being used by the LINQ Union method is case-insensitive. So if you want to ignore the case-sensitive then you need to use the other overloaded version of the Union () method which takes IEqualityComparer as an argument.