Proprietà IDatabaseOptions.AnsiNullsEnabled

Articolo
07/31/2013

Gets or sets a Boolean property value that specifies whether the ANSI_NULLS_ENABLED database option is active.

Spazio dei nomi Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

Sintassi

'Dichiarazione
<DisplayDescriptionKeyAttribute("Database_AnsiNullsEnabledDesc")> _
<DisplayNameKeyAttribute("Database_AnsiNullsEnabledName")> _
Property AnsiNullsEnabled As Boolean 
    Get 
    Set
'Utilizzo
Dim instance As IDatabaseOptions 
Dim value As Boolean 

value = instance.AnsiNullsEnabled

instance.AnsiNullsEnabled = value

[DisplayDescriptionKeyAttribute("Database_AnsiNullsEnabledDesc")]
[DisplayNameKeyAttribute("Database_AnsiNullsEnabledName")]
bool AnsiNullsEnabled { get; set; }

[DisplayDescriptionKeyAttribute(L"Database_AnsiNullsEnabledDesc")]
[DisplayNameKeyAttribute(L"Database_AnsiNullsEnabledName")]
property bool AnsiNullsEnabled {
    bool get ();
    void set (bool value);
}

[<DisplayDescriptionKeyAttribute("Database_AnsiNullsEnabledDesc")>]
[<DisplayNameKeyAttribute("Database_AnsiNullsEnabledName")>]
abstract AnsiNullsEnabled : bool with get, set

function get AnsiNullsEnabled () : boolean 
function set AnsiNullsEnabled (value : boolean)

Valore proprietà

Tipo: System.Boolean
A Boolean value that specifies whether the ANSI_NULLS_ENABLED database option is active. If True, comparisons to null values equate to false.If False (default), comparisons to null values equate to true.

Osservazioni

This property specifies whether any comparison to a null value equates to a NULL value. For example, A SELECT statement using WHERE column_name <> NULL returns zero rows even if there are non-null values in column_name

Questa opzione può inoltre essere modificata mediante l'istruzione Transact-SQL ALTER DATABASE.