SQL Server连接字符串

通常，连接SQL Server有两种方式：使用OleDb或者SqlClient进行连接。

 

使用OleDb进行连接

//标准连接方式
connectionStr = "Provider = sqloledb; Data Source = (local); Initial Catalog = databasename; User Id = ***; Password = ***";

//信任连接方式:
connectionStr = "Provider = sqloledb; Data Source = (local); Initial Catalog = databasename; Integrated Security = SSPI";

注意：Integrated Security=true 用于 OleDb 提供程序时会引发异常。当将该属性改为true时，会引发异常，无法打开数据库连接。

使用SqlClient进行连接

SqlClient进行连接分为使用windows身份验证和使用SQL Server 身份验证方式。

• 使用windows身份验证

connectionStr = "Persist Security Info=False;Integrated Security=true;Initial Catalog=databasename;Server=(local)";

或

connectionStr = "Persist Security Info=False;Integrated Security=SSPI;database=databasename;server=(local)";

或

//Integrated Security=true 用于 OleDb 提供程序时会引发异常
connectionStr = "Persist Security Info=False;Trusted_Connection=True;database=databasename;server=(local)";

• 使用SQL Server 身份验证

connectionStr = "Persist Security Info=False;User ID=sa;Password=sa;Initial Catalog=databasename;Server=(local)";