Start Updating in linq to sql

Updating in linq to sql

For example: This statement will select the employeeid, lastname, salary from the employee_info table where the lastname is equal to either: Hernandez, Jones, Roberts, or Ruiz.

Over the last few weeks I've been writing a series of blog posts that cover LINQ to SQL.

LINQ to SQL is a built-in O/RM (object relational mapper) that ships in the .

Drop Column Syntax Sometimes we will wish to delete a column from an existing table in SQL.

When we defined our data model, the LINQ to SQL designer also created a custom Data Context class that provides the main conduit by which we'll query our database and apply updates/changes.

The SELECT Operation Conculsion To perform select, insert, update and delete operations we create a table and create a data context class; in other words a dbml file.

In this file designer view we drag and drop the COURSE table from the Server Explorer.

After clicking the Add button the Context Data file is created.