Defines or undefines a topology query.
int
tpm_qrysettoponame(
char *toponame);
Returns RTNORM or an error code.
| toponame | The name of the topology to query, or NULL. |
This function determines whether the current query is a topology query or a standard data extension query as follows:
- If the toponame argument is NULL, the current query becomes a standard data extension query.
- If the toponame argument is a name, the current query becomes a topology query. But if you specify a topology that does not exist, a subsequent call to ade_qryexecute returns NULL.
If you specify a topology that does not exist, a subsequent call to ade_qryexecute returns an error code.