Read/Write Training (a.k.a Memory Training or Initial Calibration)
synchronous: The default here (FULL) meant SQLite would force a full sync to disk after every transaction. But for most web apps, if you use NORMAL (sync at critical moments) along with the WAL journal, you get much faster write performance albeit with a slight risk of losing the last transaction if you have a crash or power failure. That’s usually acceptable though.，详情可参考新收录的资料
。业内人士推荐新收录的资料作为进阶阅读
What's Lacking?Obviously, it depends on what you're trying to do. For business work, it doesn't play well in groups unless you're the CEO and can dictate, "OK people, we're all switching to DOS now." For personal projects, it meets many common needs and doesn't feel too much like compromise, aside from the graphing. Heck, the DOS version supports mouse control, and you can always turn on WYSIWYG mode to approximate modernity.
planned and actual revocations,，更多细节参见新收录的资料