原理：LIMIT 100只取100行，OFFSET 0从第1行开始。就像翻书只看前100页，硬盘不用加载全部内容。对比Excel全表加载，速度提升10倍不止！

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SELECTc.客户ID, c.客户名称, o.订单金额 LEFTJOIN订单表 o ONc.客户ID =o.客户ID ...

Overview NewSQL combines the consistency of SQL with the scalability of NoSQL to meet modern data needs.It offers faster query execution and real-time analytics ...