UserDefinedFunction Object

Questa caratteristica verrà rimossa a partire da una delle prossime versioni di Microsoft SQL Server. Evitare di utilizzare questa caratteristica in un nuovo progetto di sviluppo e prevedere interventi di modifica nelle applicazioni in cui è attualmente implementata.

The UserDefinedFunction object exposes the attributes of a single user-defined function.

Properties

AnsiNullsStatus Property	Name Property
CreateDate Property	Owner Property (Database, UserDefinedFunction)
Encrypted Property	QuotedIdentifierStatus Property
ID Property	SystemObject Property
IsDeleted Property	Text Property
IsDeterministic Property	Type Property (UserDefinedFunction)
IsSchemaBound Property

Methods

Alter Method	Grant Method (StoredProcedure, UserDefinedFunction)
Deny Method (UserDefinedFunction)	ListPermissions Method
EnumDependencies Method	ListUserPermissions Method
EnumOutputs Method	Remove Method (Objects)
EnumParameters Method	Revoke Method (UserDefinedFunction)

Osservazioni

With the UserDefinedFunction object, you can:

• Create a Microsoft SQL Server user-defined function.

• Change the definition of an existing SQL Server user-defined function.

• Control access rights to an existing SQL Server user-defined function.

• Delete an existing SQL Server user-defined function.

• Generate a Transact-SQL script to re-create a SQL Server user-defined function.

The Name property of a UserDefinedFunction object uses the SQL Server sysname data type. The value of the Name property must be unique (named by owner) within a SQL Server database.

To create a SQL Server user-defined function

1. Create a UserDefinedFunction object.

2. Set the Name property.

3. Set the Text property to contain the user-defined function.

4. Set optional property values.

5. Add the UserDefinedFunction object to the UserDefinedFunctions collection of a connected Database object.

After a user-defined function is created, you cannot reset the Name property. To change the name of a user-defined function, you must call the Remove method to drop and then re-create the object.

Nota

The UserDefinedFunction object is compatible only with SQL Server 2000 and later.