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Propriété ConcatenateNullYieldsNull

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

Espace de noms :  Microsoft.SqlServer.Management.Smo
Assembly :  Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)

Syntaxe

'Déclaration
<DisplayNameKeyAttribute("Database_ConcatenateNullYieldsNullName")> _
<DisplayDescriptionKeyAttribute("Database_ConcatenateNullYieldsNullDesc")> _
Property ConcatenateNullYieldsNull As Boolean
    Get
    Set
'Utilisation
Dim instance As IDatabaseOptions
Dim value As Boolean

value = instance.ConcatenateNullYieldsNull

instance.ConcatenateNullYieldsNull = value

[DisplayNameKeyAttribute("Database_ConcatenateNullYieldsNullName")]
[DisplayDescriptionKeyAttribute("Database_ConcatenateNullYieldsNullDesc")]
bool ConcatenateNullYieldsNull { get; set; }

[DisplayNameKeyAttribute(L"Database_ConcatenateNullYieldsNullName")]
[DisplayDescriptionKeyAttribute(L"Database_ConcatenateNullYieldsNullDesc")]
property bool ConcatenateNullYieldsNull {
    bool get ();
    void set (bool value);
}

[<DisplayNameKeyAttribute("Database_ConcatenateNullYieldsNullName")>]
[<DisplayDescriptionKeyAttribute("Database_ConcatenateNullYieldsNullDesc")>]
abstract ConcatenateNullYieldsNull : bool with get, set

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

Valeur de propriété

Type : System. . :: . .Boolean
A Boolean value that specifies whether the CONCAT_NULL_YIELDS_NULL database option is active.
If True, the concatenated result is NULL.
If False (default), the value is concatenated with a zero string.

Notes

This property specifies whether a value that is concatenated with a null value results in a null value or in a zero string.

Cette option peut aussi être modifiée à l'aide de l'instruction Transact-SQL ALTER DATABASE.