In other words, you can create data connections in Server Explorer and access them in any project. To simplify the process of creating applications that access data, Visual Studio provides the Server Explorer window as a central location to manage data connections independent of any actual projects. Essentially, connection objects provide a conduit for sending commands to a database and retrieving data and information into your application, as shown in Figure 5-1.įigure 5-1 Connection objects are your application’s communication pipeline to a database Creating Connections in Server Explorer Although connection objects typically can be thought of as the place where you set your connection string, they have additional methods for working with the connection, such as methods that open and close connections, as well as methods for working with connection pools and transactions. It is merely the pipeline through which commands and queries send their SQL statements and receive results.
Oracle 8i for windows nt box content update#
The easiest way to describe a connection object is, first, to explain what a connection object is not! A connection object does not fetch or update data, it does not execute queries, and it does not contain the results of queries. Configure a connection to a database using the Server Explorer.Ĭonfigure a connection to a database using the Data Source Configuration Wizard.Ĭonfigure a connection to a database using the Connection class.Ĭonnect to a database using specific database connection objects.Įstimated lesson time: 30 minutes What Is a Connection Object?Ī connection object is simply a representation of an open connection to a data source.
0 kommentar(er)
