If you are the only person using a PC, then the concept of having to lock information is totally foreign, because all of the data is yours and yours alone. But databases were built for the multi-user world, where concurrent access to the data is the norm. To handle this, we sometimes need to lock the data to ensure it is controlled and updated in a way that guarantees integrity and correctness. In this episode, we discuss the "Optimistic" and "Pessimistic" locking strategies, how they are used to handle the "Lost Update" problem, and what role the internet played in changing our view of database locking. If you like this episode, be sure you hit the Like button and share it with your colleagues. Catch me on Twitter at https://twitter.com/connor_mc_d if you have comments or questions.
Blog post referred to in the episode: https://stewashton.wordpress.com/2017/06/17/avoiding-lost-updates-with-ora_rowscn/
Popular Podcasts
Dateline NBC
Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations.
Death, Sex & Money
Anna Sale explores the big questions and hard choices that are often left out of polite conversation.
Stuff You Should Know
If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.