INF: SQL Server Truncates Program Name and Host Name

ID Number: Q70266

1.10 1.11 4.20

OS/2

Summary:

You cannot specify a host name longer than 10 characters or an

application name longer than 16 characters using dbsetlhost() and

dbsetlapp(). While these DB-LIBRARY macros do allow host names and

program names to be 30 characters long, the sysprocesses table defines

these columns as:

hostname char 10 /* dblib will accept 30 */

program_name char 16 /* dblib will accept 30 */

SQL Server truncates the strings to fit into these columns without any

warning or error messages. Pages 130 and 131 of the "Microsoft SQL

Server Programmer's Reference for C" indicate that this is legal.

Microsoft is aware of this problem and will be updating the "Microsoft

SQL Server Programmer's Reference for C" to reflect this additional

information.

Note: The column definitions can be seen by performing an sp_help on

the sysprocesses table in the master database.

Additional reference words: DB-LIBRARY db-lib dblib