There are so many problems with foreign key constraints that we don't know where to start: Foreign key constraints make life very complicated, because the foreign key definitions must be stored in a ...

I'm working on a web app, and it part of it, there is a very simple database-driven file/document manager. As a file manager, there is the possibility of sub-folders. So in the DB, I have the ...

I assume you want to delete referential data without worrying about deleting it in just the right order to preserve references in intermediate steps. I wouldn't drop and add a foreign key just to ...

When MySQL 5.5 switched its underlying storage engine MyISAM to another, InnoDB, it drew questions and created some confusion about the foundation of this database. Certainly, the choice of a storage ...