PhysicalDatatype Property
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 PhysicalDatatype property returns the name of the base data type for the referenced column.
语法
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);
.gif "注意") 注意 |
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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. |
注释
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.