TableViewBase.UpdateStatistics 方法 (StatisticsTarget, StatisticsScanType, Int32, Boolean)
Updates the statistics for the table or view with the option to specify the target, the type of scan performed, the sample size, and whether 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 ( _
affectType As StatisticsTarget, _
scanType As StatisticsScanType, _
sampleValue As Integer, _
recompute As Boolean _
)
用法
Dim instance As TableViewBase
Dim affectType As StatisticsTarget
Dim scanType As StatisticsScanType
Dim sampleValue As Integer
Dim recompute As Boolean
instance.UpdateStatistics(affectType, _
scanType, sampleValue, recompute)
public void UpdateStatistics(
StatisticsTarget affectType,
StatisticsScanType scanType,
int sampleValue,
bool recompute
)
public:
void UpdateStatistics(
StatisticsTarget affectType,
StatisticsScanType scanType,
int sampleValue,
bool recompute
)
member UpdateStatistics :
affectType:StatisticsTarget *
scanType:StatisticsScanType *
sampleValue:int *
recompute:bool -> unit
public function UpdateStatistics(
affectType : StatisticsTarget,
scanType : StatisticsScanType,
sampleValue : int,
recompute : boolean
)
参数
- affectType
类型：Microsoft.SqlServer.Management.Smo.StatisticsTarget
A StatisticsTarget object value that specifies the target of the statistics update, such as columns or indexes.
- scanType
类型：Microsoft.SqlServer.Management.Smo.StatisticsScanType
A StatisticsScanType object value that specifies the way in which statistical information is gathered.
- sampleValue
类型：System.Int32
An Int32 value that specifies the sample size. The units are dependent on the scan type.
- recompute
类型：System.Boolean
A Boolean value that specifies whether to recompute the statistics.If True, the statistics are recomputed.If False, the statistics are not recomputed.
示例
请参阅
参考
Microsoft.SqlServer.Management.Smo 命名空间