UnbindFromDatatype Method
未來的 Microsoft SQL Server 版本將移除這項功能。請避免在新的開發工作中使用這項功能，並規劃修改目前使用這項功能的應用程式。
The UnbindFromDatatype method breaks the binding between a Microsoft SQL Server default or rule and a user-defined data type.
語法
object
.UnbindFromDatatype(
Datatype
, [ FutureOnly ] )
Parts
object
Expression that evaluates to an object in the Applies To list.Datatype
String that identifies an existing user-defined data type by name.FutureOnly
When TRUE, columns defined using the data type maintain the rule or default though the default no longer exhibits the behavior.
Prototype (C/C++)
HRESULT UnbindFromDatatype(
SQLDMO_LPCSTR Datatype,
BOOL bFutureOnly = FALSE);