ColumnsNullByDefault Property

未來的 Microsoft SQL Server 版本將移除這項功能。請避免在新的開發工作中使用這項功能，並規劃修改目前使用這項功能的應用程式。

The ColumnsNullByDefault property controls column default value behavior when a table is created in the Microsoft SQL Server database.

語法

object.ColumnsNullByDefault [=value]

Parts

• object
  An expression that evaluates to an object in the Applies To list

• value
  TRUE or FALSE

Data Type

Boolean

Modifiable

Read/write

Prototype (C/C++)

HRESULT GetColumnsNullByDefault(LPBOOL pRetVal);
HRESULT SetColumnsNullByDefault(BOOL NewValue);

備註

If TRUE, columns in new tables allow NULL.

If FALSE, columns in new tables do not allow NULL.

The default behavior can be changed on a column-by-column basis. For more information, see AllowNulls Property.

Applies To:

DBOption Object