Description
bool 
fbsql_select_db ( [string database_name [, resource link_identifier]] )
 
     fbsql_select_db() sets the current active
     database on the server that's associated with the specified link
     identifier.  If no link identifier is specified, the last opened
     link is assumed.  If no link is open, the function will try to
     establish a link as if fbsql_connect() was
     called, and use it.
    
     Returns TRUE on success or FALSE on failure.
    
     The client contacts FBExec to obtain the port number to use for
     the connection to the database. If the database name is a number
     the system will use that as a port number and it will not ask
     FBExec for the port number.  The FrontBase server can be stared
     as FRontBase -FBExec=No -port=<port number> <database
     name>.
    
     Every subsequent call to fbsql_query() will be
     made on the active database.
    
     if the database is protected with a database password, the user must
     call fbsql_database_password() before selecting
     the database. 
    
 
     See also
     fbsql_connect(), 
     fbsql_pconnect(),
     fbsql_database_password(), and
     fbsql_query().