Hmm.... I will suggest to teach him in a reverse way. Say, next time if he uses any of above statements like "database not updating" sorta... Now you start as

Hmm.... I will suggest to teach him in a reverse way. Say, next time if he uses any of above statements like "database not updating" sorta... Now you start asking him questions.... why is it now updating? Had you checked the connection is working? Are you sending data to proper collection/table. Is schema right? And blah blah..... I hope this kinda approach will develop his "developer" attitude in a small way. Many new guys don't get a chance to work and get mentored. He had got it.....Thanks to you! And also it doesn't hurts to speak with him politely about this issue.