Index.EnumStatistics Method
Enumerates a list of statistical information for the index.
命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)
语法
声明
Public Function EnumStatistics As DataSet
public DataSet EnumStatistics ()
public:
DataSet^ EnumStatistics ()
public DataSet EnumStatistics ()
public function EnumStatistics () : DataSet
返回值
A DataSet system object value that contains an enumerated list of statistical information. The DataSet contains a set of DataTable objects, which contain the following columns.
Column |
Data type |
Description |
RANGE_ROWS |
The estimated number of rows from the table that fall within a histogram step, excluding the upper bound. |
|
EQ_ROWS |
Int32 |
The estimated number of rows from the table that are equal in value to the upper bound of the histogram step. |
DISTICT_RANGE_ROWS |
Int32 |
The estimated number of distinct values within a histogram step, excluding the upper bound. |
RANGE_HI_KEY |
Int32 |
The upper bound value of a histogram step. |
备注
仅 Microsoft .NET Framework 的 2.0 版本支持此命名空间、类或成员。
示例
How to: Create a Non-Clustered, Composite Index in Visual Basic .NET
线程安全
Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
平台
开发平台
有关支持的平台列表,请参阅安装 SQL Server 2005 的硬件和软件要求。
目标平台
有关支持的平台列表,请参阅安装 SQL Server 2005 的硬件和软件要求。
请参阅
参考
Index Class
Index Members
Microsoft.SqlServer.Management.Smo Namespace
其他资源
Creating, Altering, and Removing Indexes
索引
DROP INDEX (Transact-SQL)