I'm not sure of the right syntax to use. Is it select * from tlb where flag is NULL or select * from tlb where flag = NULL Is the answer the same for oracle, sqlserver and Postgres?
I've spent the last year becoming really comfortable with MySQL, but due to its increasing trendiness and my desire to homogenize my web-apps with Heroku, I'd like to start using PostgreSQL for my web ...
Is varchar just a remnant from before text came around, or are there use cases where you would want to use a varchar? (Or char for that matter..) (I use Postgres and MySQL (MyISAM) daily, so those ...
I always thought the largest scale of banks use Oracle. However, there is no proof they really use Oracle instead of Mysql or PostgreSQL, nobody knows the secret. Any idea what they really use? Can ...