数据库中最重要的东西是数据模型。如果你把数据模型做对了,其他一切都会随之而来。
永不放弃。今天很艰难,明天会更糟,但后天会阳光灿烂。
Facts do not speak for themselves. They speak for or against competing theories. Facts divorced from theories or visions are mere isolated curiosities.