Using IIS ASP to display a blob field in SQL Server 2005

Discussion in 'ASP General' started by None@none.com, Aug 30, 2010.

  1. Guest

    I'm using Windows 2000 Server IIS ASP and I'm attempting to display a
    picture via an vbscript/ASP of a Blob image in SQL Server 2005. Below,
    is part of the code (the important part) that I'm using after reading
    up a bit. Unfortunately, I'm not getting the Blob image in one of our
    Vendor's SQL database to pop up. Instead, I'm getting a box with a
    red X in the middle of it

    Any ideas?

    SQL1 = "SELECT RD.ID, RD.image"
    SQL1 = SQL1 & " WHERE RD.ID = '29'"
    set rs = my_conn.Execute(SQL1)

    <TR>
    <TD bgcolor=<%=FieldColor%> align=center
    colspan=1><B>ID</B></TD>
    <TD bgcolor=<%=FieldColor%> align=center
    colspan=1><B>Picture/B></TD>
    </TR>
    <%if rs.EOF then%>
    <TR>
    <TD bgcolor=<%=InfoField%> align=center
    colspan=10><B>No definition found</B></TD>
    </TR>
    <%
    else
    do until rs.EOF%>
    <TR>
    <TD bgcolor=<%=InfoField%>
    align=center><%=rs("ID")%>&nbsp;</TD>
    <TD bgcolor=<%=InfoField%> align=center><img
    src="<%=rs("image")%>">&nbsp;</TD>
     
    , Aug 30, 2010
    #1
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  2. Ziggs Guest

    Small correction. I tried to make the code easier to work with to get
    to the main point. I forgot to add the table in the select statement,
    so here's the corrected statement. Any help is apprecieated.


    SQL1 = "SELECT RD.ID, RD.image from RD"
    "SQL1 = SQL1 & " WHERE RD.ID = '29'"
     
    Ziggs, Aug 30, 2010
    #2
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  3. Neil Gould Guest

    Since you haven't received a reply from those who know more than I, I'll
    chime in with a couple of items...

    Since you are using ...SQL1 & " WHERE RD.ID = '29'" ... I presume that RD.ID
    is a text field? If not, it should probably be ...SQL1 & " WHERE RD.ID = 29"

    If you are getting data from this query, but no pictures (as your post
    implies), I would check the references in the database to verify that the
    links are valid, and point to a location that is accessible from the script.

    And, finally, there are some errors in your HTML, but that may be just the
    way you copied it here and would probably not affect only the images.
     
    Neil Gould, Aug 31, 2010
    #3
  4. You cannot display an image from a Blob field in an ASP page this way;
    however, you say that your code is working for other Vendor's SQL databases
    and that it doesn't work for only one of them; so I'm very confuse.

    My interpretation is that the field "image" is not a blob field but contains
    the name of the file on the hard drive; so it's probably more a question of
    a bad setup for the (virtual) repertory(ies) in IIS than a problem with the
    SQL-Server or the ASP code.

    --
    Sylvain Lafontaine, ing.
    MVP - Access
    Blog/web site: http://coding-paparazzi.sylvainlafontaine.com
    Independent consultant and remote programming for Access and SQL-Server
    (French)
     
    Sylvain Lafontaine, Sep 1, 2010
    #4
  5. Bwig Zomberi Guest


    If the db contains a binary blob of the image, you can use it as the
    address (src) of the image tag.

    Use the URL of a separate ASP script in the SRC attribute. In that ASP
    script, retrieve the blob from the database, set the content type
    whatever mime type the image uses (jpeg, gif...), and
    response.binarywrite the contents of the blob. This script should output
    only binary content from the blob, it should not write an spaces or HTML
    blocks.


    Use logic similar to what is presented here
    http://groups.google.com/group/micr...read/thread/67dfa90720edbb2f/9c0136d1c3e28e0c
     
    Bwig Zomberi, Sep 2, 2010
    #5
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