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layout: default | ||
title: B+树 | ||
parent: Database | ||
nav_order: 8 | ||
--- | ||
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# B+树 | ||
定义: | ||
B+树是一种数据结构,是一个N叉排序树,每个节点通常有多个孩子,一棵B+树包含根节点、内部节点和叶子节点。 | ||
根节点可能是一个叶子节点, 也可能是一个包含两个或两个以上孩子节点的节点。 | ||
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B+树通常用于数据库和操作系统的文件系统中。NTFS、ReiserFS、NSS、XFS、JFS、ReFS和BFS等文件系统都在使用B+树作为元数据索引。 | ||
B+树的特点是能够保持数据稳定有序, 其插入与修改拥有较稳定的对数时间复杂度。B+树元素自底向上插入。 | ||
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# 参考文献 | ||
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- https://ivanzz1001.github.io/records/post/data-structure/2018/06/16/ds-bplustree |
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