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How can you load data into a DataSet so that it can be queried using LINQ?
Data sources that implement the IEnumerable generic interface can be queried through LINQ. Calling AsEnumerable on a DataTable returns an object which implements the generic IEnumerable interface, which serves as the data source for LINQ to DataSet queries.
How do you enter data into a SQL database?
Import data in SQL database via SQL Server Import and Export data wizard
- When SSMS is connected to the chosen instance of SQL Server, right-click on the desired database and navigate to Tasks > Import data option from the Tasks submenu:
- That action will open the SQL Server Import and Export Wizard window.
What is LINQ to object?
The term “LINQ to Objects” refers to the use of LINQ queries with any IEnumerable or IEnumerable collection directly, without the use of an intermediate LINQ provider or API such as LINQ to SQL or LINQ to XML. In a basic sense, LINQ to Objects represents a new approach to collections.
How to insert column data in LINQ to SQL?
LINQ to SQL translates your changes into the appropriate SQL INSERT commands. The following steps assume that you have made a valid DataContext connection to the database. Use the following procedure to insert a row into the database: Create a new object that includes the column data to be submitted.
What do you do with LINQ to SQL?
LINQ to SQL translates our actions to SQL and submits the changes to the database. Here we will perform Select, Insert, Update and Delete operations on a COURSE table.
How to insert, update and delete in LINQ to SQL?
LINQ to SQL translates our actions to SQL and submits the changes to the database. Here we will perform Select, Insert, Update and Delete operations on a COURSE table. Create a new item, select the LINQ to SQL classes (as shown in the following figure) and name it Operation.dbml. After clicking the Add button the ContextData file is created.
How do you insert a record in LINQ?
When using LINQ to SQL, you insert new records by calling the InsertOnSubmit () method. After calling the InsertOnSubmit () method, you must call SubmitChanges () to make the insertion happen. The SubmitChanges () method executes all of the database commands that have been queued.