FreeTDS Development Group

[Erik Myllymaki <erik.myllymaki AT aviawest.com>]

ZIGLIO, Frediano, VF-IT wrote:
> > freetds 0.63-1.1 on RedHat Enterprise Linux 3.
> >
> > Python 2.3 using mx.ODBC v 2.0.7
> >
> > I am using a python script to connect to MSSQL Server 2003, 
> > and am having 
> > trouble inserting any strings with escaped characters ('\n','\t',etc.)
>
> mssql 2003 ??? It doesn't exist.... ms released mssql 2000 and mssql
> 2005...

sorry, that should have been MSSQL 2000 on Windows 2003 Server.

and, I think I have incorrectly identified my troubles. I am going to try and 
summarize here and then will post the freetds.log file (large!) if need be.

My aim is to store emails in MSSQL via a python script on Linux. The script 
works on Windows but not Linux using freetds.

In particular, it i the size of the python strings to be inserted that causes 
the errors:

inserting string <= 255 characters into a MSSQL VARBINARY(8000) field works

inserting string of length 256 characters into a MSSQL VARBINARY(8000) errors 
with:
	mx.ODBC.Error.Warning: ('22001', 8152, '[unixODBC][FreeTDS][SQL Server]String 
or binary data would be truncated.', 6083)

inserting  A string =< 255 characters into TEXT field, errors with:

mx.ODBC.Error.OperationalError: ('', 206, '[unixODBC][FreeTDS][SQL 
Server]Operand type clash: varbinary is incompatible with text', 6083)

string > 255 characters into MSSQL TEXT field errors with:

mx.ODBC.Error.OperationalError: ('', 206, '[unixODBC][FreeTDS][SQL 
Server]Operand type clash: image is incompatible with text', 6083)

inserting string <= 255 characters into a MSSQL NTEXT field, errors with:

mx.ODBC.Error.OperationalError: ('', 8180, '[unixODBC][FreeTDS][SQL 
Server]Statement(s) could not be prepared.', 6083)

string > 255 characters into a MSSQL NTEXT field errors with:
mx.ODBC.Error.OperationalError: ('', 8180, '[unixODBC][FreeTDS][SQL 
Server]Statement(s) could not be prepared.', 6083)


SQL Query:

mystring = r'''Various strings of various lengths
'''

sql = "insert into 
DEVEL..email_bodypart(message_id,part_number,name,type,encoding,body) 
values(?,?,?,?,?,?)"

c.execute(sql, (10000,1,'filename','file','8bit',mystring))


freetds.conf:
[MSSQL2000]
        host = 192.168.1.9
        port = 1433
        tds version = 8.0
        dump file = /tmp/freetds.log
        client charset = UTF-8



> > Any strings with carriage returns or newlines error with:
> >
> > Error Type: InterfaceError
> > Error Value: ('HY004', 0, '[unixODBC][FreeTDS][SQL 
> > Server]Invalid data type', 5665)
> >
> > the important part of the logfile:
> >
> > Received packet @ 08:13:57.747411
> > 0000 aa 82 00 ce 00 00 00 02-10 34 00 4f 00 70 00 65 
> > |........ .4.O.p.e|
> > 0010 00 72 00 61 00 6e 00 64-00 20 00 74 00 79 00 70 
> > |.r.a.n.d . .t.y.p|
> > 0020 00 65 00 20 00 63 00 6c-00 61 00 73 00 68 00 3a |.e. 
> > .c.l .a.s.h.:|
> > 0030 00 20 00 69 00 6d 00 61-00 67 00 65 00 20 00 69 |. 
> > .i.m.a .g.e. .i|
> > 0040 00 73 00 20 00 69 00 6e-00 63 00 6f 00 6d 00 70 |.s. 
> > .i.n .c.o.m.p|
> > 0050 00 61 00 74 00 69 00 62-00 6c 00 65 00 20 00 77 
> > |.a.t.i.b .l.e. .w|
> > 0060 00 69 00 74 00 68 00 20-00 6e 00 74 00 65 00 78 |.i.t.h. 
> >  .n.t.e.x|
> > 0070 00 74 00 07 4e 00 41 00-4e 00 53 00 51 00 4c 00 
> > |.t..N.A. N.S.Q.L.|
> > 0080 33 00 00 01 00 aa 60 00-f4 1f 00 00 01 10 23 00 
> > |3.....`. ......#.|
> > 0090 53 00 74 00 61 00 74 00-65 00 6d 00 65 00 6e 00 
> > |S.t.a.t. e.m.e.n.|
> > 00a0 74 00 28 00 73 00 29 00-20 00 63 00 6f 00 75 00 
> > |t.(.s.).  .c.o.u.|
> > 00b0 6c 00 64 00 20 00 6e 00-6f 00 74 00 20 00 62 00 |l.d. 
> > .n. o.t. .b.|
> > 00c0 65 00 20 00 70 00 72 00-65 00 70 00 61 00 72 00 |e. 
> > .p.r. e.p.a.r.|
> > 00d0 65 00 64 00 2e 00 07 4e-00 41 00 4e 00 53 00 51 
> > |e.d....N .A.N.S.Q|
> > 00e0 00 4c 00 33 00 00 01 00-79 f4 1f 00 00 ac 09 00 
> > |.L.3.... y.......|
> > 00f0 00 01 38 00 00 00 26 04-00 fe 02 00 e0 00 01 00 
> > |..8...&. ........|
> > 0100 00 00                  -                        |..|
>
> Could you post more log. The query would be very useful.
>
> > What I am trying to insert is just HTML without embedded images.
> >
> > Thnaks for any direction you can provide.
>
> freddy77