EnumCandidateKeys Method
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 EnumCandidateKeys method returns a QueryResults object that enumerates the user tables of a Microsoft SQL Server database and the constraints on those tables that could define primary keys.
语法
object
.EnumCandidateKeys( )
as
QueryResults
Parts
- object
Expression that evaluates to an object in the Applies To list.
Prototype (C/C++)
HRESULT EnumCandidateKeys(
LPSQLDMOQUERYRESULTS* ppResults);
Returns
A QueryResults object that contains one result set defined by these columns.
Column | Data type | Description |
---|---|---|
candidate_table |
nvarchar(262) |
SQL Server table name. |
candidate_key |
nvarchar(129) |
Name of an existing UNIQUE or PRIMARY KEY constraint. |