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The overall LINQ goal was tomake it easier for developers to interact
with SQL and XML, primarily because there exists a disconnect between relational data (databases),
XML, and the programming languages that communicate with (that is, work with) each of them.
Most developers understand the concept of object-oriented (OO) programming and its related
technologies and features, such as classes, methods, and objects. Object-oriented programming has
evolved tremendously over the past 10 years or so, but even in its current state, there??™s still a gap
when using and integrating OO technology with information that is not natively defined or inherent
to it.
For example, suppose that you want to execute a T-SQL query from within your C# application. It
would look something like this:
private void Form1_Load(object sender, EventArgs e)
{
string ConnectionString = @"Data Source=(local);
Initial Catalog=AdventureWorks;UID=sa;PWD=yourpassword";
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
conn.Open();
SqlCommand cmd = conn.


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