I\'ve done a little research on hash tables, and I keep running ac开发者_开发知识库ross the rule of thumb that when there are a certain number of entries (either max or via a load factor like 75%) the
I\'m not used to work with values that should decrement every a timelapse like for a user warned, for example a warn which persist for 30 days that can reach a maximum value of 3 warns before the user
I\'m trying to get my head around with the group by command, basically I\'m trying to select all messages of a user, group them by subject then show t开发者_开发知识库hem - just like how face book doe