UnloadODSDLL Method
Questa caratteristica verrà rimossa a partire da una delle prossime versioni di Microsoft SQL Server. Evitare di utilizzare questa funzionalità in un nuovo progetto di sviluppo e prevedere interventi di modifica nelle applicazioni in cui è attualmente implementata.
The UnloadODSDLL method frees a dynamic-link library (DLL) loaded into Microsoft SQL Server memory.
Sintassi
object.UnloadODSDLL(DLLName)
Parts
object
Expression that evaluates to an object in the Applies To list.DLLName
String that identifies a DLL loaded by Open Data Services by name.
Prototype (C/C++)
HRESULT UnloadODSDLL(
SQLDMO_LPCSTR szDLLName);
Osservazioni
SQL Server implements a call to a function exported from a DLL as an extended stored procedure. When a SQL Server process calls the extended stored procedure, SQL Server Open Data Services loads the DLL and locates the function entry point. By default, the DLL remains loaded until the SQL Server service shuts down.
Use the UnloadODSDLL method to free a DLL implementing a SQL Server extended stored procedure when required. For example, when a Microsoft Windows operating system loads a DLL, the operating system file implementing the library is opened as shareable, read-only. An attempt to update the file fails. Freeing the library allows installation of a new version of the library.