A UNIQUE experience


If you look at the postings on SQL forums, you will notice that people are sloppy. They expect that the reader can read their minds and figure out everything that’s not been posted. They seldom post DDL, and when they do, it is also wrong. I don’t mean a little bit wrong. I mean fundamentally wrong. RDBMS has the concepts of (Relational) keys, so DDL without at least one key means you don’t have a table at all. If all the columns are NULL-able, they cannot ever be part of any key. This non-table is really a deck of 1960s