UniqueKeyCount Property
后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。
The UniqueKeyCount property returns an approximate number of words that are uniquely addressable in a Microsoft Search full-text catalog.
语法
object
.UniqueKeyCount
Parts
- object
An expression that evaluates to an object in the Applies To list
Data Type
Long
Modifiable
Read-only
Prototype (C/C++)
HRESULT GetUniqueKeyCount(LPLONG pRetVal);