目录1、背景2、事务id【1】分配时机【2】生成方式【3】隐藏列3、INSERT操作对应的undo日志【1】TRX_UNDO_INSERT_REC类型4、DELETE操作对应的undo日志【1】delete mark阶段【2】purge阶段【3】TRX_UNDO_DEL_MARK_REC类
According to the specification, Black colour blocks and the edges of the program restrict program flow. If the P开发者_如何学编程iet interpreter attempts to move into a black block or off an edge, it
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