New column

NQ Union is used to retrieve the distinct elements between two collections/ sequences; it combines two or more collections of elements and finally returns the unique elements as a result. LINQ Union is an extension method that requires two collections to combine the two collections and returns the distinct elements from both collections. LINQ Union supports only method syntax; it does not support the query syntax. The Union method presents in both the classes Queryable class and Enumerable class.

 
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