tagBUFFERCOL 結構
Contains metadata that describes the data stored in a buffer column.
命名空間: Microsoft.SqlServer.Dts.Pipeline.Wrapper
組件: Microsoft.SqlServer.DTSPipelineWrap (在 Microsoft.SqlServer.DTSPipelineWrap.dll 中)
語法
'宣告
Public Structure tagBUFFERCOL
'用途
Dim instance As tagBUFFERCOL
public struct tagBUFFERCOL
public value class tagBUFFERCOL
[<SealedAttribute>]
type tagBUFFERCOL = struct end
JScript 支援結構的使用,但不支援結構的宣告。
tagBUFFERCOL 型別公開下列成員。
方法
名稱 | 說明 | |
---|---|---|
Equals | (繼承自 ValueType。) | |
GetHashCode | (繼承自 ValueType。) | |
GetType | (繼承自 Object。) | |
ToString | (繼承自 ValueType。) |
上層
欄位
名稱 | 說明 | |
---|---|---|
DataType | Specifies the data type of the value contained in the column. | |
lCodePage | Specifies the character set used to interpret the data in a buffer column. | |
lLengthOffset | Indicates the number of bytes from the beginning of a buffer row to the end of the column data. | |
lMaxLength | Indicates the maximum length of the data stored in a buffer column. | |
lOffset | Indicates the number of bytes from the beginning of a buffer row to the beginning of the column data. | |
lPrecision | Indicates the number of decimal places of precision contained in a buffer column. | |
lScale | Indicates the number of decimal places contained in the buffer column. | |
lStatusOffset | Indicates the length in bytes from the beginning of a buffer row to the status value of a column. |
上層
備註
The columns in an IDTSBuffer100 contain metadata about the column data. This information is represented by the tagBUFFERCOL structure. This structure is retrieved for an individual column by calling the GetColumnInfo method.
The values contained in the fields within the structure reflect the values contained in the IDTSOutputColumn100 that originally inserted the column into the data flow.
[!附註]
The tagBUFFERCOL structure is also represented by the DTP_BUFFCOL and BufferColumn structures. The DTP_BUFFCOL structure is a C++ type definition. When writing managed code, you will use the BufferColumn structure.
執行緒安全性
這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。