Today in my travels I came across Codd’s 12 rules. They are rules for what qualifies as a relational database. Apparently these rules are discussed in RELATIONAL MODEL DATABASE MANAGEMENT 2 but as that is $486 I will not have a copy any time soon…
Daily Archives: 2020-11-09 [Monday]
Stop checking for NULL pointers!
Read this great article Stop checking for NULL pointers! It mentions that there are many other invalid pointers than NULL, which is the same idea I had recently with regard to foreign keys in databases.
Protecting TimeMachine backups from itself
Today I bumped into Protecting TimeMachine backups from itself. A good article, covers various TimeMachine Mac things including `tmutil`.