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Posted by Erland Sommarskog on 10/08/96 11:52
(mpietrzyk@autograf.pl) writes:
> I'm having a nasty problem with bulk copying into a table that has
> unique identifier column. I'm coding on C++, using ODBC driver.
>
> I'm coping from a file containing UID description like this:
> {43B5B3DE-5280-4CBF-B357-D9E57651F0D1}
> (I also tried a non-bracket version)
>
> and in the DB table I get:
> 4233347B-4235-4433-452D-353238302D34
>
> which seems random at first sight, but it is:
> [B34{]-[B5]-[D3]-[E-]-[5280-4] - with chars read binary as hex.
>
> and my question is: what the hell?
>
> my code look like this:
>
> if (bcp_init (m_hDbproc,tableName, NULL, NULL, DB_IN) == FAIL)
> ret = -1;
>
> if (bcp_bind (m_hDbproc, (LPCBYTE)data, 0, 16, (LPCBYTE)NULL, 0,
> SQLUNIQUEID, colNo) == FAIL){
> ret = -1;
> }
>
> (I also tried a VARLEN version:)
>
> if (bcp_bind (m_hDbproc, (LPCBYTE)data, 0, SQL_VARLEN_DATA,
> (LPCBYTE)delimiter, 1, SQLVARCHAR, colNo) == FAIL){
> ret = -1;
> }
First you need to decide in which format is the UID? It if is in text,
you should specify SQLVARCHAR for the data type. Only if you have the
UID as binary, you should specify SQLUNIQUEID.
Even if you use SQLVARCHAR, I don't think SQL_VARLEN_DATA is correct.
It depends on what's in delimiter, but since a GUIO is always 36
characters (without braces), you could just as well specify 36 for the
length.
--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx
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