Good afternoon folks, I chatted with a friend last night. He's also good in sql but not sure which one. He is also the person who does the technical interviews. Anyways, we talked about few sql and I froze after he started telling me to brush up on cascading tables and turn tables. I've never heard about them. I'm very willing to learn and would like to seek some advice here. He also game me an example on how cascading tables can be use say for a class-students-subjects tables. I remember he mentioned about 1 to many or many to many and as well as how to design it ideally especially if you delete a subject, how can the other be udpated. I also remember he said that triggers will work but not ideal. I'm very willing to learn them. I also like to learn proper designing. Any help would be greatly appreciated. Thanks, HAPPY NEW YEAR EVERYONE!