How does LINQ to SQL work in a database?
Handle relational data as an object. LINQ to SQL converts the language’s built-in queries in the object to SQL and forwards them to the database for execution. When the database responds, the LINQ to SQL output converts them back to objects. LINQ to SQL supports user-defined functions and stored procedures in the database.
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What does the DataContext class do in LINQ?
The DataContext class acts as a bridge between the SQL Server database and LINQ to SQL. To access the database and also to change the data in the database, it contains the connection string and the functions. 15) Explain what LINQ query expressions are.
What is the main purpose of using LINQ?
The main purpose of using LINQ is to retrieve complex queries on a data set. LINQ is used to combine the values of two different data sets. It is also used to get a single value from the data set. LINQ offers a more precise way than SQL query to query the data set. LINQ also provides more features compared to ADO.NET.
What are the different ways to write LINQ query syntax?
LINQ is used to combine the values of two different data sets. It is also used to get a single value from the data set. LINQ offers a more precise way than SQL query to query the data set. LINQ also provides more features compared to ADO.NET. 3) What are the different ways to write LINQ query syntax?
What is the passing point for LINQ to SQL?
The DataContext class acts as a waypoint for the LINQ to SQL framework. It is the basis for all accesses mapped onto a database connection. A data context is lightweight and cheap to create. After adding LINQ to SQL classes, empty DataContext classes that are ready to be configured are represented by an empty design surface.
When to use FROM clause in LINQ?
With another programming language and C#, LINQ is used, it requires all variables to be declared first. The “FROM” clause of the LINQ query defines the range or conditions for selecting records. Therefore, the FROM clause must appear before the SELECT in LINQ. 7) Explain what is the use of System.XML.Xlinq.dll?