Index.UpdateStatistics 方法 (StatisticsScanType, Int32, Boolean)
Updates statistics for the referenced index with the specified statistics scan type and specified sample size and with the option to recompute the statistics.
命名空间： Microsoft.SqlServer.Management.Smo
程序集： Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）
语法
声明
Public Sub UpdateStatistics ( _
scanType As StatisticsScanType, _
sampleValue As Integer, _
recompute As Boolean _
)
用法
Dim instance As Index
Dim scanType As StatisticsScanType
Dim sampleValue As Integer
Dim recompute As Boolean
instance.UpdateStatistics(scanType, sampleValue, _
recompute)
public void UpdateStatistics(
StatisticsScanType scanType,
int sampleValue,
bool recompute
)
public:
void UpdateStatistics(
StatisticsScanType scanType,
int sampleValue,
bool recompute
)
member UpdateStatistics :
scanType:StatisticsScanType *
sampleValue:int *
recompute:bool -> unit
public function UpdateStatistics(
scanType : StatisticsScanType,
sampleValue : int,
recompute : boolean
)
参数
- scanType
类型：Microsoft.SqlServer.Management.Smo.StatisticsScanType
A StatisticsScanType that specifies the method used to update the statistics.
- sampleValue
类型：System.Int32
An Int32 value that specifies the sample value.
- recompute
类型：System.Boolean
A Boolean value that specifies whether to recomputed the index statistics or not.If True, the statistics are recomputed. Otherwise, False.
注释
.gif "注意") 注意 |
|---|
Indexes based partly on the UserDefinedTableType object do not support statistics and running this method will generate an exception. |
示例
请参阅
参考
Microsoft.SqlServer.Management.Smo 命名空间