PhysicalDatatype Property
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 PhysicalDatatype property returns the name of the base data type for the referenced column.
語法
object.PhysicalDatatype
Parts
- object
An expression that evaluates to an object in the Applies To list
Data Type
String
Modifiable
Read-only
Prototype (C/C++)
HRESULT GetPhysicalDatatype(SQLDMO_LPBSTR pRetVal);
[!附註]
SQL Distributed Management Objects (SQL-DMO) strings are always returned as OLE BSTR objects. A C/C++ application obtains a reference to the string. The application must release the reference using SysFreeString.
備註
For a Microsoft SQL Server column created using a base data type, the referencing Column object Datatype and PhysicalDatatype properties have identical values. For a SQL Server column created using a user-defined data type, the referencing Column object Datatype property returns the name of the user-defined data type. The PhysicalDatatype property reports the SQL Server base data type.