The database is started on an existing server, if possible. Otherwise, a new server is started. The steps carried out to start
a database are described in Locating a database server.
If the database was already running or was successfully started, the return value is true (non-zero) and SQLCODE is set to
0. Error information is returned in the SQLCA.
If a user ID and password are supplied in the parameters, they are ignored.
The permission required to start and stop a database is set on the server command line. For information, see -gd dbeng12/dbsrv12 server option.