FreeTDS Development Group

["Thompson, Bill D (London)" <bill_d_thompson AT ml.com>]

Hi,

I saw JKL last night and he told me off for not contributing any more.
sorry!
here's my two pennorth for what it's worth...

You're right - SET ANSI_WARNINGS OFF can be used to silently ignore data
truncation issues in T-SQL, but BCP inserts data into the database at a
much lower level than T-SQL. 
Effectively the BCP protocol provides the server with data that more
closely mirrors the way that the data is physically stored in the
database files themselves. 
It's therefore important that the data that BCP provides to the server
doesn't break any of the rules that govern that. 
Break those rules and you get database corruption!

So all possible problems with data format are errored by the bcp/dblib
layer. 
You may find that the actual validation occurs within the dbconvert()
call within the function you identified.
switching on a TDSDUMP should tell you what it's up to, and where...

Hope this helps - it's been a long time!

Bill

-----Original Message-----
From: freetds-bounces AT lists.ibiblio.org
[mailto:freetds-bounces AT lists.ibiblio.org] On Behalf Of Cedric ROUVRAIS
Sent: 20 August 2009 23:42
To: FreeTDS Development Group
Subject: [freetds] BCP In of data too large fails [NC]


Hi guys,

The bcp in a row that contains one or more columns that have too much
data
in the file results in the line not being inserted. I have the
impression
this is done at the bcp/dblib level whereas it should be done by the
database (SET ANSI_WARNINGS OFF | ON)

Does anyone know where this is done precisly?

I am currently looking at static RETCODE _bcp_read_hostfile(DBPROCESS *
dbproc, FILE * hostfile, int *row_error)

but if some could point out the code location, it would be helpful

Thanks,

Cedric


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