V S P wrote:
> Hi thank you for the follow up.
> Just had a break through...
<snip>
> Three things that I am not still sure about, and may be you can help:
>
> a) does Posgtres driver on unixODBC do the same as Windows (that is
> there is a unicode and non unicode versions of the drivers ?
> (I am interested in 64 bit linux and 64 bit freebsd ones)
>
> b) I noticed that when using the Unicode version (first) and
> Ascii version (second) the value of SWORD right before SQLVLEN is
> different
> (it is 12 on the ascii and -9 on unicode version) -- what does this
> mean?
It's the SQL data type. 12 means SQL_VARCHAR and -9 means SQL_WVARCHAR.
> disp_otrq_x86d 8a4-b90 EXIT SQLDescribeColW with return code 0
> (SQL_SUCCESS)
> HSTMT 013F1BA8
> UWORD 11
> WCHAR * 0x01A28974 [ 9] "cntr_data"
> SWORD 512
> SWORD * 0x01A28BC4 (9)
> SWORD * 0x01A28BB8 (-9)
> SQLULEN * 0x01A28B94 (4096)
> SWORD * 0x01A28BA0 (0)
> SWORD * 0x01A28B88 (1)
>
>
> disp_otrq_x86d ab8-498 EXIT SQLDescribeColW with return code 0
> (SQL_SUCCESS)
> HSTMT 013F1C38
> UWORD 11
> WCHAR * 0x01A28974 [ 9] "cntr_data"
> SWORD 512
> SWORD * 0x01A28BC4 (9)
> SWORD * 0x01A28BB8 (12)
> SQLULEN * 0x01A28B94 (4096)
> SWORD * 0x01A28BA0 (0)
> SWORD * 0x01A28B88 (1)
> another question: I have about 6 tables where about 20 fields in each
> table,
> 2 fields are 65K long (they are declared as varchar(65000) is this is OK
> for ODBC drivers, and what if anything I should be setting on them?
65K may be OK if you set the max long varchar size > 65000 but please
note that most applications/middlewares have their own limitation.
For example the limitation of MS Access is around 65000 AFAIR.
regards,
Hiroshi Inoue