Connection类有四种:SqlConnection,OleDbConnection,OdbcConnection和OracleConnection。 SqlConnection类的对象连接SQL Server数据库;OracleConnection 类的对象连接Oracle数据库;OleDbConnection类的对象连接支持OLE DB的数据库,如Access;而OdbcConnection类的对象连接任何支持ODBC的数据库。与数据库的所有通讯最终都是通过Connection...
Connection类有四种:SqlConnection,OleDbConnection,OdbcConnection和OracleConnection。 SqlConnection类的对象连接SQL Server数据库;OracleConnection 类的对象连接Oracle数据库;OleDbConnection类的对象连接支持OLE DB的数据库,如Access;而OdbcConnection类的对象连接任何支持ODBC的数据库。与数据库的所有通讯最终都是通过Connection...
System.Data.OleDb.OleDbConnection System.Data.SqlClient.SqlConnection System.Data.Odbc.OdbcConnection System.Data.OracleClient.OracleConnection 连接到 SQL Server SQL Server .NET Framework 数据提供程序支持类似于 OLE DB (ADO) 连接字符串格式的连接字符串格式。 using (SqlConnection connection = new SqlConne...
连接数据库使用的相应对象为:OdbcCommand,OdbcConnection,OdbcAdapter,OdbcDataReader 举例: Dim strconn AsString="Driver={sql server};server=localhost;uid=sa;pwd=123456654321;database=charge_sys" Dim strsql AsString="select * from User_Info" Dim conn AsOdbcConnection=NewOdbcConnection(strconn) Dim c...
SQLDriverConnect是SQLConnect 的替代方法。 它支持需要比SQLConnect中的三个参数更多的连接信息的数据源、提示用户输入所有连接信息的对话框,以及系统信息中未定义的数据源。 有关详细信息,请参阅使用 SQLDriverConnect 进行连接。 语法 C++复制 SQLRETURNSQLDriverConnect( SQLHDBC ConnectionHandle, SQLHWND WindowHandle...
当SQLConnect返回SQL_ERROR或SQL_SUCCESS_WITH_INFO时,可以通过使用handleType为 SQL_HANDLE_DBC 和ConnectionHandle句柄调用SQLGetDiagRec来获取关联的 SQLSTATE 值。 下表列出了SQLConnect通常返回的 SQLSTATE 值,并说明了此函数上下文中的每个值:表示法“ (DM) ”位于驱动程序管理器返回的 SQLSTATE 说明之前。 与每...
The following example creates anOdbcCommandand anOdbcConnection. TheOdbcConnectionis opened and set as theConnectionproperty. The example then callsExecuteNonQuery, and closes the connection. To accomplish this, theExecuteNonQueryis passed a connection string and a query string that is an SQL INSERT st...
However, the ODBC Driver is getting SQL Server error 772, which is supposedly related to TLS 1.2, which the XP ODBC driver does not support. SQL is not requiring encryption. I can't find anything that says that encryption of an XP ODBC connection is even possible without a lot ...
In SQL Server Data Tools, open the SQL Server 2019 Integration Services (SSIS) package that has the ODBC destination. On the Data Flow tab, double-click the ODBC destination. In the ODBC Destination Editor, click Connection Manager. Options Connection manager Select an existing ODBC connection ma...
Connection failed: SQLState: '01000' SQL Server Error: 1703 [Microsoft][ODBC SQL Server Driver][Multi-Protocol] ConnectionOpen(RPCopen()) Connection failed: SQLState:'08001' SQL Server Error:11 [Microsoft][ODBC SQL Server Driver][Multi-Protocol]General network error. Check your network ...