[freetds] BLOB retrieval
ZIGLIO, Frediano, VF-IT
Frediano.Ziglio at vodafone.com
Tue May 3 10:53:36 EDT 2005
>
> Hello,
>
> My current business amounts to dumping MS SQLServer tables
> that, among
> others, contain TEXT (or NTEXT) data.
>
> Of course, they are always longer than the current textsize ;-)
>
> I was happy enough to find that the associated text-pointer
> is returned
> in the BLOBINFO data structure, for each blob column.
> I still need to know the length of that BLOB, so I can :
>
> SET TEXTSIZE @size_large_enough
>
> and then :
>
> READTEXT Table.column @the_pointer 0 @size
>
> My current guess is that I should augment the selected column with
> DATALENGTH( blob_column1), DATALENGTH( blob_column2 ) ...
> which does not seems to be such a good idea, since automatically
> patching SQL requests in such a way sounds hard to me.
> Besides, I need
> to know those column names in advance.
>
> Thanks for any help,
>
> Alexis
I really don't understand. A simple "select * from table" isn't enough
??
freddy77
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