Login | Register   
RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Language: VB6
Expertise: Intermediate
Feb 3, 2001



Building the Right Environment to Support AI, Machine Learning and Deep Learning

FileToBlob - Copy a file's contents into a BLOB field

' Copy a file's contents into a BLOB field.

Sub FileToBlob(fld As ADODB.Field, filename As String, _
    Optional ChunkSize As Long = 8192)
    Dim fnum As Integer, bytesLeft As Long, bytes As Long
    Dim tmp() As Byte
    ' Raise an error if the field doesn't support GetChunk.
    If (fld.Attributes And adFldLong) = 0 Then
        Err.Raise 1001, , "Field doesn't support the GetChunk method."
    End If
    ' Open the file; raise an error if the file doesn't exist.
    If Dir$(filename) = "" Then Err.Raise 53, , "File not found"
    fnum = FreeFile
    Open filename For Binary As fnum
    ' Read the file in chunks, and append data to the field.
    bytesLeft = LOF(fnum)
    Do While bytesLeft
        bytes = bytesLeft
        If bytes > ChunkSize Then bytes = ChunkSize
        ReDim tmp(1 To bytes) As Byte
        Get #1, , tmp
        fld.AppendChunk tmp
        bytesLeft = bytesLeft - bytes
    Close #fnum
End Sub
Francesco Balena
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



Thanks for your registration, follow us on our social networks to keep up-to-date