OK, first, that's right out of the metabase manual, with names changed to
protect the innocent. Second, the example won't work, it gives syntax errors
with the MS driver on creating the test db and tables, but I fixed the DB
part, but the tables still won't create themselves, it still gives errors.
I've hacked it up a little bit, but it doesen't look like the test stuff will
work for access. Has anyone successfully done this, and how? I cannot
believe that I'm the only person who's ever stored binary data in Access,
regardless of how bad of an idea it is...
> Hello,
>
> Mike Baranski wrote:
> > Sorry about the previous one, that was a mistake.
> >
> > I have the following code to insert a blob into an access OLE object
> > field:
>
> I am not sure if using SQL is the appropriate way to update such object
> field.
>
> Anyway, to make this work, such object must be of ODBC type
> ODBC_LONGVARBINARY .
>
> Metabase can create tables with BLOB fields properly declared. You may
> want to try the driver test script to see what it does and how it shows
> in access. Look in lob_test.schema to see how you can define a schema
> with LOB fields so Metabase manager class can create one for your needs.
>
> > if(($prepared_query=MetabasePrepareQuery($database,"UPDATE incident_blob
> > SET data_blob=?, description='new'")))
> > {
> >
> > $binary_lob=array(
> >
> > "Type"=>"inputfile",
> > "Database"=>$database,
> > "Error"=>"",
> > "FileName"=>"test.php"
> >
> > );
> > if(($success=MetabaseCreateLOB($binary_lob,$blob)))
> > {
> >
> > MetabaseQuerySetBLOB($database,$prepared_query,1,$blob,"data_blob");
> > if(!MetabaseExecuteQuery($database,$prepared_query))
> > $error=MetabaseError($database);
> > MetabaseDestroyLOB($blob);
> > }
> > else
> > {
> > $error=$binary_lob["Error"];
> > echo "Error 1 (CreateLOB): $error\n";
> > }
> > MetabaseFreePreparedQuery($database,$prepared_query);
> >
> > }
> > else
> > {
> > $error=MetabaseError($database);
> > echo "Error 2 (Prepare): $error\n";
> > }
> >
> > I can connect and query the database otherwise, and it works fine. The
> > problem is with the Blobs, that update statement is not getting run.
> > There's only 1 row in the table, but the description and ole object do
> > not get updated. If I switch the driver to use mysql as opposed to odbc,
> > it works fine on an identical table (on linux, not windows). Any ideas?
>
> Did you verify that MetabaseExecuteQuery call above succeeds? If it does
> not succeed, what is the error message that is returned?
>
> Regards,
> Manuel Lemos
>
> > Mike B.
> >
> > On Wednesday 26 December 2001 02:49 pm, Manuel Lemos wrote:
> > > Hello,
> > >
> > > Mike Baranski wrote:
> > > > Hi, I'm trying to store a binary file in an access database, I'm
> > > > using an ole type, and I think that it's getting inserted OK. My
> > > > problem is that I don't know how to pull it out... How do you select
> > > > the stuff that's in an ole object out of the database and display it,
> > > > a jpg, for example. I can't even get the raw data. I've tried
> > > > converting it to base 16 and inserting it, but I still can't pull it
> > > > out. I know how to do this in mysql, so posting that won't help. I
> > > > need to know how to do this with access.
> > >
> > > If you are using ODBC, you may want to try Metabase because it supports
> > > BLOB fields with any ODBC driver. Metabase is Open Source and is freely
> > > available here.
> > >
> > > http://phpclasses.UpperDesign.com/browse.html/package/20
> > >
> > > Regards,
> > > Manuel Lemos
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