Column.UpdateStatistics Method (StatisticsScanType, Int32, Boolean)

Updates Statistic objects that monitor this column using a sampled scan.

Пространство имен: Microsoft.SqlServer.Management.Smo
Сборка: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Синтаксис

'Декларация
Public Sub UpdateStatistics ( _
    scanType As StatisticsScanType, _
    sampleValue As Integer, _
    recompute As Boolean _
)

public void UpdateStatistics (
    StatisticsScanType scanType,
    int sampleValue,
    bool recompute
)

public:
void UpdateStatistics (
    StatisticsScanType scanType, 
    int sampleValue, 
    bool recompute
)

public void UpdateStatistics (
    StatisticsScanType scanType, 
    int sampleValue, 
    boolean recompute
)

public function UpdateStatistics (
    scanType : StatisticsScanType, 
    sampleValue : int, 
    recompute : boolean
)

Параметры

scanType
A StatisticsScanType object value that specifies the type operation to perform during the creation or update of a Statistic object.

sampleValue
An Int32 value that specifies the number of rows or percentage of the total number of rows to use in a sampled scan. This parameter is required only when the scanType indicates a sampled scan.

recompute
A Boolean value that specifies whether the statistics will be automatically recomputed or not.

If True, the statistics are automatically recomputed.

If False, no attempt is made to re-compute the statistics.

Замечания

Это пространство имен, класс или элемент поддерживаются только платформой Microsoft .NET Framework версии 2.0.

Пример

How to: Create, Alter, and Remove a Table in Visual Basic .NET

Синхронизация потоков

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.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

См. также

Справочник

Column Class
Column Members
Microsoft.SqlServer.Management.Smo Namespace

Другие ресурсы

UPDATE STATISTICS (Transact-SQL)
Статистика индексов
Working with Database Objects

Last updated on 2008-12-15