Professional ASP.NET 1.1 [Electronic resources] نسخه متنی

Use the SQL TDS Classes for Data Access

There are several sets of objects for accessing a data source:

Objects prefixed

OleDb (from the

System.Data.OleDb namespace) use an OLEDB provider to access that data store.

Objects prefixed

Odbc (from the

System.Data.Odbc namespace) use an ODBC driver to access that data store.

Objects prefixed

Oracle (from the

System.Data.OracleClient namespace) use an Oracle- specific provider to access that data store.

Objects prefixed

Sql (from the

System.Data.SqlClient namespace) use the Microsoft SQL Server Tabular Data Stream (TDS) interface to access that data store.

In general, the

Sql -prefixed objects are much faster and more efficient, and should always be used where you know that the data store will be Microsoft SQL Server. All the data access classes automatically provide connection pooling.