int mysql_select_db(MYSQL *mysql, const char
Causes the database specified by
db to become
the default (current) database on the connection specified by
mysql. In subsequent queries, this database
is the default for table references that do not include an
explicit database specifier.
mysql_select_db() fails unless
the connected user can be authenticated as having permission to
use the database.
Zero for success. Nonzero if an error occurred.