Dataadapter update not updating database

Table Adapters can contain multiple queries to fill their associated data tables.

You can define as many queries for a Table Adapter as your application requires, as long as each query returns data that conforms to the same schema as its associated data table. This means you can't look it up in the documentation or the Object Browser.

When the fills a Data Set, it creates the necessary tables and columns for the returned data if they do not already exist.

However, primary key information is not included in the implicitly created schema unless the If you are using SQL Server stored procedures to edit or delete data using a Data Adapter, make sure that you do not use SET NOCOUNT ON in the stored procedure definition.

Updates the values in the database by executing the respective INSERT, UPDATE, or DELETE statements for each inserted, updated, or deleted row in the specified array in the Data Set.(Inherited from Db Data Adapter.)Updates the values in the database by executing the respective INSERT, UPDATE, or DELETE statements for each inserted, updated, or deleted row in the Data Set with the specified Data Table name.(Inherited from Db Data Adapter.)Updates the values in the database by executing the respective INSERT, UPDATE, or DELETE statements for each inserted, updated, or deleted row in the specified Data Table.(Inherited from Db Data Adapter.) provides this bridge by mapping Fill, which changes the data in the Data Set to match the data in the data source, and Update, which changes the data in the data source to match the data in the Data Set, using the appropriate Transact-SQL statements against the data source. For every inserted, modified, and deleted row, the Update method determines the type of change that has been performed on it (Insert, Update, or Delete).

Regardless of whether you clear the data, you need to explicitly send updates back to the database, if you want to persist them. When you use a Table Adapter, it effectively performs the same operations with the commands that you typically would perform.

Table Adapters are designer-generated components that connect to a database, run queries or stored procedures, and fill their Data Table with the returned data.

Table Adapters also send updated data from your application back to the database.

For example, removing a column from the main query also removes the column from the associated data table.

If any additional queries on the Table Adapter use SQL statements that return columns that are not in the main query, the designer attempts to synchronize the column changes between the main query and the additional queries.

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