SetPassword Method
后续版本的 Microsoft SQL Server 将删除该功能。 请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。
The SetPassword method changes the password for the referenced login.
语法
object.SetPassword(OldValue,NewValue)
Parts
object
Expression that evaluates to an object in the Applies To list.OldValue
String that specifies the current password string.NewValue
String that specifies a new password for the login record.
Prototype (C/C++)
HRESULT SetPassword(
SQLDMO_LPCSTR OldValue,
SQLDMO_LPCSTR NewValue);
注释
Use the SetPassword method to alter a password for a login record used by SQL Server Authentication only.
The current password need not be known when setting a new password using the SetPassword method. Use an empty string to specify no password for either the existing password or a new password for the login.
Changing Microsoft SQL Server login passwords using the SetPassword method requires appropriate permissions. The SQL Server login used for SQLServer object connection must be a member of the fixed role sysadmin.