SQL Server外部資料源 您只能在DSN / Connection String 關鍵字資料行下指定具有DSN 和連接字串關鍵字和屬性中的專案索引鍵/值組。 例如,不支援 SQL_ATTR_TXN_ISOLATION 關鍵字,因為這是使用 SQLSetConnectAttr設定的屬性,而不是連接字串。 Microsoft OLE DB 提供者的連接字串關鍵字和選項: Microsoft OLE DB Driver...
cmd.Parameters.AddRange(parameter);returncmd.ExecuteNonQuery(); } }//////执行语句后,返回第一行第一列的数据////////////<returns>object类型的值</returns>publicstaticobjectExecuteScalar(stringsql,paramsSqlParameter[] parameter) {using(SqlConnection conn =newSqlConnection(connstr))using(SqlCommand ...
SqlConnection sqlConn =new SqlConnection(); (3)、给连接对象的连接字符串属性赋值 sqlConn.ConnectionString="Server=172.25.112.21;database=vips;uid = vips_user;pwd = vips_user"; (4)、打开连接 sqlConn.Open(); 注意:一个已经打开了的连接在关闭之前是不能重复打开的。 (5)、关闭连接 sqlConn.Clos...
System.Data.SqlClient.notsupported.cs Gets or sets the string used to open a SQL Server database. C#Копирај publicoverridestringConnectionString {get;set; } Property Value String The connection string that includes the source database name, and other parameters needed to establ...
ODBC applications use connection strings as a parameters to the SQLDriverConnect and SQLBrowseConnect functions. Connection strings used by ODBC have the following syntax: connection-string ::= empty-string[;] | attribute[;] | attribute; connection-string empty-string ::= attribute ::= attribute-...
ODBC applications use connection strings as a parameters to theSQLDriverConnectandSQLBrowseConnectfunctions. Connection strings used by ODBC have the following syntax: connection-string ::= empty-string[;] | attribute[;] | attribute; connection-string ...
ODBC applications use connection strings as a parameters to theSQLDriverConnectandSQLBrowseConnectfunctions. Connection strings used by ODBC have the following syntax: connection-string ::= empty-string[;] | attribute[;] | attribute; connection-string ...
ASqlConnectionsystem object that specifies connection parameters associated with the referenced connection. 示例 C# String connectionString = "Data Source=(local);Initial Catalog=AdventureWorks2012;Integrated Security=SSPI;"; SqlConnection sqlConnection = new SqlConnection(connectionString); ServerConnection co...
ADO's Connection object accepts a connection string that specifies the OLE DB provider to be used as well as the parameters to pass to it. You'll see "SQLOLEDB" in this string if an app is connecting to SQL Server using the SQLOLEDB provider. It's also possible for an ADO application...
ServerConnection() () () ()Initializes a new instance of the ServerConnection class. ServerConnection(SqlConnection)Initializes a new instance of the ServerConnection class with the specified connection parameters. ServerConnection(String)Initializes a new instance of the ServerConnection class with th...