FreeTDS Development Group

["ZIGLIO Frediano" <Frediano.Ziglio AT vodafone.com>]

> 
> Hi all,
> 

Hi!

> I had a friend create a table on his M$ SQL server 2000 with 
> just one row and as many columns as data types. He filled 
> each field with a different value corresponding to data type. E.g.
> 
> bigint, bit, char, datetime, float, money, nvarchar, unique 
> 1111119,1,c,30/04/2003 13:00:19,23.45, 123.45, hello, 
> {F44A-etc-...blah}
> 
> Note the Unique identifier in the above example is not the 
> real value I just couldn't be bothered to write it out in full!
> 
> Anyway using the code snippet below works great except when 
> trying to convert and print the unique ID. What should I be 
> doing to allow all data types to be printed successfully as 
> with tsql and sqsh?
> 
> <snip>
> 

Wow... C++ !!!

> const string& tds::connection::print_field (const int &column) {

string tds::connection::print_field (const int column) {
(return value, not input reference)

>    static string str;

string str;
??? why static ???

>    unsigned char *row = results->current_row;
>    const int type = results->columns[column]->column_type;
>    const int offset = results->columns[column]->column_offset;
>    const int size = results->columns[column]->column_cur_size;
>    const int conversion_type = tds_get_conversion_type (type, size);
> 
>    str.clear ();
> 

remove str.clear(); line

>    if (tds_get_null (const_cast <unsigned char *> (row), column))

row is already unsigned char *, cast unneeded

>       str = "NULL";
>    else {
>       CONV_RESULT convert;
>       unsigned char *value = &(row[offset]);
> 
>       if (is_blob_type (type))
>          value = (unsigned char*) ((TDSBLOBINFO *) value)->textvalue;
> 
>          if (tds_convert (context, conversion_type, (TDS_CHAR 
> *) value, 
>                           size, SYBVARCHAR, &convert) < 0)
>             throw tds::error ("Failed to convert row type at 
> column.");
> 

Seem correct...

>          str = convert.c;
>          free (convert.c);
>    }
> 
>    return str;
> }
> 
> </snip>
> 
> I have tried printing both the C++ tds::string and the 
> converted value* both fail.
> 
> Can anyone help! Plleasse!!
> 

What version of FreeTDS are you using ??

> Many thanks
> 
> James Vanns
> 

freddy77