Rule Property
Esta característica se quitará en una versión futura de Microsoft SQL Server. Evite utilizar esta característica en nuevos trabajos de desarrollo y tenga previsto modificar las aplicaciones que actualmente la utilizan.
The Ruleproperty identifies a data integrity constraint, implemented by a Microsoft SQL Server database rule and bound to the referenced column or user-defined data type.
Sintaxis
object.Rule [= value]
Parts
object
An expression that evaluates to an object in the Applies To listvalue
A string that identifies a SQL Server rule by name
Data Type
String
Modifiable
Read/write for the Column object. Read-only for the UserDefinedDatatype object.
Prototype (C/C++)
HRESULT GetRule(SQLDMO_LPBSTR pRetVal);
HRESULT SetRule(SQLDMO_LPCSTR NewValue);
[!NOTA]
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.
Notas
Setting the Rule property offers an alternate method for binding SQL Server rules to columns.