Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Writing to BLOBs in mySQL and ASP

Posted on 2004-04-28
15
Medium Priority
?
1,197 Views
Last Modified: 2012-08-13
I have transferred to a mySQL database and have run up against a problem.

I use the below code to create a new record but it cannot create the record due to an error caused by incorrect code when writing to a BLOB.

Response.Buffer = true
set rst = Server.CreateObject("ADODB.RecordSet")
sqltext = "SELECT * FROM TableName"

rst.Open sqltext,objaConn,3,3
rst.AddNew
rst("name") = Request.form("name")' varchar in DB
rst("email") = Request.form("email") ' varchar in DB
rst("information") = Request.form("information") 'blob in DB
rst.update
rst.close
0
Comment
Question by:BeakerTrail
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 8
  • 6
15 Comments
 
LVL 11

Expert Comment

by:Slimshaneey
ID: 10939588
Change the code to

rst.Open sqltext,objaConn,3,3
rst.AddNew
rst("name") = Request.form("name")' varchar in DB
rst("email") = Request.form("email") ' varchar in DB
rst("information").AppendChunk = Request.form("information") 'blob in DB
rst.update
rst.close
0
 

Author Comment

by:BeakerTrail
ID: 10939660
That returns an error:

ADODB.Field error '800a0c93'

Operation is not allowed in this context.

line 95 <-- line with appendchunk on.
0
 
LVL 31

Expert Comment

by:alorentz
ID: 10940926
Not sure about this: ($)

Response.Buffer = true
sqltext = "INSERT INTOP TableName (name, email, information) VALUES " & _
    "('" & request("email") & "', '" & request("email") & "', '$" & request("information") & "')"

objaConn.execute sqltext
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 31

Expert Comment

by:alorentz
ID: 10940943
Whoops...think that was PHP, didn't read enough ;-)
0
 

Author Comment

by:BeakerTrail
ID: 10940989
Yeah. What I am trying to do is in ASP - i've zero knowledge of PHP
0
 
LVL 31

Expert Comment

by:alorentz
ID: 10941000
However, I would like to recommend not storing the image in the DB, rather store the path to the uploaded fileonthe server, then use this to display:

<img src="<%=rs("information")%>">
0
 
LVL 31

Expert Comment

by:alorentz
ID: 10941026
Try this:

rst.Open sqltext,objaConn,3,3
rst.AddNew
rst("name") = Request.form("name")' varchar in DB
rst("email") = Request.form("email") ' varchar in DB
rst("information").AppendChunk Request.form("information") 'no = sign
rst.update
rst.close
0
 

Author Comment

by:BeakerTrail
ID: 10941112
It isn't an image, it is a very big chunk of text.

The error i get occurs when writing to a Blob or a Text field. This is ASP and mySQL

I will post all the code below with the mySQL field types, maybe it will help:

Dim rst, objaConn, objaRS
Set objaConn = Server.CreateObject("ADODB.Connection")
objaConn.Open "Driver={MySQL ODBC 3.51 Driver};Server=xxx;Database=xxx;UID=xxx;PWD=xxx;"
Response.Buffer = true
set rst = Server.CreateObject("ADODB.RecordSet")
sqltext = "SELECT * FROM TableName"
rst.Open sqltext,objaConn,3,3
rst.AddNew
rst("name") = Request.form("name") 'varchar
rst("email") = Request.form("email") 'varchar
rst("datejoined") = Year(Date) & "-" & Month(Date) & "-" & Day(Date) & " " & time 'datetime
rst("information") = Request.form("information") 'text
rst("interests") = Request.form("interests") 'text
rst("occupation") = Request.form("occupation") 'text
rst.update 'line 114
rst.close

which gives the error:

Microsoft OLE DB Provider for ODBC Drivers error '80004005'

[Microsoft][ODBC Driver Manager] Invalid string or buffer length

line 114
0
 

Author Comment

by:BeakerTrail
ID: 10941140
For the line:
rst("information").AppendChunk Request.form("information")

It gives:

ADODB.Field error '800a0c93'

Operation is not allowed in this context.
0
 
LVL 31

Expert Comment

by:alorentz
ID: 10941237
May need to put this in there:


Set objaConn = Server.CreateObject("ADODB.Connection")
objaConn.Open "Driver={MySQL ODBC 3.51 Driver};Server=xxx;Database=xxx;UID=xxx;PWD=xxx;"

objaConn.CursorLocation = adUseClient  '<---------ADD THIS

0
 

Author Comment

by:BeakerTrail
ID: 10941299
That returns:

ADODB.Connection error '800a0bb9'

Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.
0
 
LVL 31

Accepted Solution

by:
alorentz earned 1000 total points
ID: 10941344
This then:

Set objaConn = Server.CreateObject("ADODB.Connection")
objaConn.CursorLocation = 3                           '<-----move line here and change to 3
objaConn.Open "Driver={MySQL ODBC 3.51 Driver};Server=xxx;Database=xxx;UID=xxx;PWD=xxx;"

Also, make sure you put back to this:

rst("information") = Request("information") '<-----should be fine for TEXT field


0
 
LVL 31

Expert Comment

by:alorentz
ID: 10941357
Also, check the request object for data at top of page:

Response.write "TEXT: " & request("information")
Response.end
0
 

Author Comment

by:BeakerTrail
ID: 10941514
Excellent! that did the trick, i think.... mySQL server keeps going down - argh!

Thanks :)
0
 
LVL 31

Expert Comment

by:alorentz
ID: 10941524
MySQL is sketchy like that....good luck!
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I recently decide that I needed a way to make my pages scream on the net.   While searching around how I can accomplish this I stumbled across a great article that stated "minimize the server requests." I got to thinking, hey, I use more than one…
This demonstration started out as a follow up to some recently posted questions on the subject of logging in: http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Q_28634665.html and http://www.experts-exchange.com/Programming/…
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…
In a question here at Experts Exchange (https://www.experts-exchange.com/questions/29062564/Adobe-acrobat-reader-DC.html), a member asked how to create a signature in Adobe Acrobat Reader DC (the free Reader product, not the paid, full Acrobat produ…

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question