Thanks Roger. That does seem to be the problem as the type of the columns is coming back as "text."
I guess the next question is how do I force the affinity to "blob" using the PHP PDO API... Sam On Wed, Oct 27, 2010 at 2:12 PM, Roger Binns <rog...@rogerbinns.com> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 10/27/2010 11:48 AM, Art Age Software wrote: >> New to this list and hoping someone can help. I have a sqlite3 >> database that contains a couple of tables that have binary data in >> BLOB columns. > > Note that there is column affinity, but the data stored for a particular > column can differ per row. > >> I know the data is in there and stored correctly because >> the application accessing the database can retrieve the column data >> just fine. > > That doesn't prove it :-) > >> The problem is that the .dump command produces a dump file with >> seemingly truncated BLOB columns. > > The single most likely cause is that the data is actually stored as text not > blobs. The easiest way to check is this: > > select distinct typeof(columnname) from tablename; > > When you supply "text" to SQLite APIs (the ones ending in _text) they are > expected to be UTF8 encoded bytes. However SQLite does not actually check > that it is valid UTF8 encoding. Consequently it is possible to insert > random binary data using the text APIs and for it appear to all work > correctly. > > The dump code stops at the first null in any text value but will correctly > output a blob value. > > Roger > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAkzIlaYACgkQmOOfHg372QSPDQCfcTuAMFa+9vpmBAJ6WMZtCX5M > opgAoMKc9THDp58KyaWIl9UvOyVQ/Iac > =82WY > -----END PGP SIGNATURE----- > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
