SQL Error! info: MySQL Query Error

Time: 2023-11-30 9:05am
Script: /movdisplay.php

SQL: SELECT Movies.Name_ZH_TW,Movies.MID,Movies.StoreHost,Movies.Source FROM Movies LEFT JOIN recommend ON Movies.MID = recommend.MovieID ORDER BY recommend.rDate DESC LIMIT 4
Error: No database selected
Errno.: 1046