Type Property (Key)
Dieses Feature wird in einer zukünftigen Version von Microsoft SQL Server entfernt. Verwenden Sie dieses Feature beim Entwickeln neuer Anwendungen nicht, und planen Sie das Ändern von Anwendungen, in denen es zurzeit verwendet wird.
The Type property exposes configured attributes of the referenced Microsoft SQL Server component.
Syntax
object.Type [= value]
Parts
- object
An expression that evaluates to an object in the Applies To list.
- value
A long integer that specifies key constraint attributes as described in Settings.
Data Type
Long, enumerated
Modifiable
Read/write when using the Key object to define a PRIMARY KEY or FOREIGN KEY constraint. Read-only when the Key object references an existing constraint.
Prototype (C/C++)
HRESULT GetType(SQLDMO_KEY_TYPE* pRetVal)
HRESULT SetType(SQLDMO_KEY_TYPE NewValue)
Settings
| Constant | Value | Description |
|---|---|---|
SQLDMOKey_Foreign |
3 |
The key references, or will be used to create, a SQL Server FOREIGN KEY constraint. |
SQLDMOKey_Primary |
1 |
The key references, or will be used to create, a SQL Server PRIMARY KEY constraint. |
SQLDMOKey_Unique |
2 |
The key references a SQL Server UNIQUE constraint on a column not allowing NULL. |
SQLDMOKey_Unknown |
0 |
The value is not valid. |