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DTP_VARIANT Structure

  • 项目

Specifies the data type of the column. This is a value from the DataType enumeration that determines the type of DTP_VARIANT structure stored in each cell of this column.

命名空间: Microsoft.SqlServer.Dts.Runtime.Wrapper
程序集: Microsoft.SqlServer.DTSRuntimeWrap (in microsoft.sqlserver.dtsruntimewrap.dll)

语法

声明
Public Structure DTP_VARIANT

public struct DTP_VARIANT

public value class DTP_VARIANT

public final class DTP_VARIANT extends ValueType

JScript 支持结构的使用，但不支持新结构的声明。

备注

This structure is used by the pipeline to determine column information. When a component calls the GetData method, the last parameter is the returned column data, in a DTP_VARIANT structure. The data union is the union of the different types supported by the pipeline, such as Long, String, wstring, decimal, numeric, and so on, and it contains the column data. The DataType is the datatype of the column data, and it tells which part of the union to use. The length specifies the length of the data in the union.

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

DTP_VARIANT Members
Microsoft.SqlServer.Dts.Runtime.Wrapper Namespace