图片存取的例子？选什么数据类型？

[kusate]

有没有存取图片的例子给一个行吗？选什么数据类型？(数据库用SQL Server)
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[SoHo_Andy]

使用image类型字段
'将任何文件从数据库中下载到本地:
Public Function LoadFile(ByVal col As ADODB.Field, ByVal FileName As String) As Boolean '获得binary数据
On Error GoTo myerr:
Dim arrBytes() As Byte
Dim FreeFileNumber As Integer
lngsize = col.ActualSize
arrBytes = col.GetChunk(lngsize)
FreeFileNumber = FreeFile
Open FileName For Binary Access Write As #FreeFileNumber
Put #FreeFileNumber, , arrBytes
Close #FreeFileNumber
LoadFile = True
myerr:
If Err.Number <> 0 Then
LoadFile = False
Err.Clear
End If
End Function

'将文件从本地上传到数据库中
Public Function UpLoadFile(ByVal FileName, ByVal col As ADODB.Field) As Boolean
On Error GoTo myerr:
Dim arrBytes() As Byte
Dim FreeFileNumber As Integer
FreeFileNumber = FreeFile
Open FileName For Binary As #FreeFileNumber
n = LOF(FreeFileNumber)
ReDim arrBytes(1 To n) As Byte
Get #FreeFileNumber, , arrBytes
Close #FreeFileNumber
col.AppendChunk (arrBytes)
UpLoadFile = True
myerr:
If Err.Number <> 0 Then
UpLoadFile = False
Err.Clear
End If
End Function

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[rainstormmaster]

image类型

用ado对象提供的stream类实现更简单（要求版本2.5以上）

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[奈伊组特]

http://expert.csdn.net/Expert/topic/2315/2315286.xml?temp=.357876

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