Default Property (Column, UserDefinedDatatype)
未來的 Microsoft SQL Server 發行版本將不再提供此功能。請避免在新的開發工作中使用此功能,並計劃修改目前使用此功能的應用程式。
The Default property identifies a Microsoft SQL Server default bound to a column or user-defined data type.
語法
object
.Default [=value]
Parts
- object
An expression that evaluates to an object in the Applies To list
- value
The name of a default defined in the SQL Server database
Data Type
String
Modifiable
Read/write
Prototype (C/C++)
HRESULT GetDefault(SQLDMO_LPBSTR pRetVal);
HRESULT SetDefault(SQLDMO_LPCSTR NewValue);
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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. |
備註
The BindToColumn and BindToDatatype methods of the Default object can also set this property.