Original address: http://www.jb51.net/article/36184.htmB-Tree1. B-Tree definitionA B-tree is a balanced, multi-path lookup tree that is useful in a file system.Definition: A B-Tree of M-order, or an empty tree, or a M-fork tree that satisfies the
B-Tree
1. B-Tree definition
A B-tree is a balanced, multi-channel lookup tree that is useful in file systems.
Definition: An M-order B-tree, or an empty tree, or a M-fork tree that satisfies the following attributes:At most, there are M Shang
The 2-3 trees in the balance lookup tree are explained earlier and the red and black trees are implemented. 2-3 tree species, a node has a maximum of 2 keys, while the red-black tree uses a staining method to identify the two keys.Wikipedia defines
1. About B-tree
Although most of the search trees are binary trees, there is a popular serach tree taht is not binary. This tree is known as a B-tree.Although most of the search trees are binary trees, there are not binary tree search trees. This
Efficientlytraversing InnoDB b+trees with the page directory1, the purpose of the page directoryAs described in the posts mentioned Above,all records in INDEX pages is linked together in a singly-linked list Inascendi Ng order. However, list
Efficientlytraversing InnoDB b+trees with the page directory1, the purpose of the page directoryAs described in the posts mentioned Above,all records in INDEX pages is linked together in a singly-linked list Inascendi Ng order. However, list
Address: http://www.blogjava.net/supercrsky/articles/185167.html Detailed description of B, B-, B +, and B * trees
BTree
That is, the binary search tree:
1.All non-leaf nodes have at most two sons (LeftAndRight);
2.A keyword is stored on all
Generation of B-treesFlyfish 2015-7-19Start building a B-tree from an empty tree insert keywords one at a timeRules:All non-terminal nodes outside the root node have at least
? m / 2 ?
Subtrees tree, so the number of keywords must
First, the principle of the indexThe so-called index, which is the rapid positioning and lookup, then the structure of the index to minimize the number of disk I/O during the lookup process (b + tree, its non-leaf nodes occupy a smaller space, can
Metaserver metadata management of the KFS file system uses the B + tree method. The following uses the source code to analyze the organization and implementation details of metadata in KFS metaserver.
1. Related source code files
KFS metaserver
InnoDB is the default storage engine for MySQL (Mysql5.5.5 is MyISAM, document). In the purpose of efficient learning, this article is mainly about the introduction of InnoDB, a small number involving MyISAM as a contrast.This article is a summary
1 Various tree-shaped structuresOriginally not intended to start from the two-fork search tree, because there are too many related articles on the Internet, but considering the clear diagram of the understanding of the problem is very helpful, but
SummaryThis article describes MySQL's InnoDB index-related knowledge, from a variety of tree-to-index principles to the details of storage.InnoDB is the default storage engine for MySQL (Mysql5.5.5 before MyISAM, documentation). In the purpose of
Summary:This article describes MySQL's InnoDB index-related knowledge, from a variety of tree-to-index principles to the details of storage.InnoDB is the default storage engine for MySQL (Mysql5.5.5 before MyISAM, documentation). In the purpose of
Background: These days watching "high-performance MySQL", in the view of creating high-performance indexes, the book says that the MySQL storage engine InnoDB the type of index used is b+tree, then, you have not produced such a question, for the
First Note: The B-Tree is a C-tree, "-" is a ligature symbol, not a minus sign.
B-Tree is a
BalanceThe Multi-way
lookup (also called sort)Tree, which is applied in the file system. Used primarily as an index for a file.
where B means balance
Summary:This article is for reference to other people's articles (http://blog.csdn.net/voidccc/article/details/40077329)1 Various tree-shaped structuresOriginally not intended to start from the two-fork search tree, because there are too many
MySQL has never known much, before the SQL prepared to submit to the production environment before the time, the old staff to help me check the next SQL, let me modify the storage engine, then I used the MyISAM, and later changed to InnoDB. Why to
Summary:This article describes MySQL's InnoDB index-related knowledge, from a variety of tree-to-index principles to the details of storage.InnoDB is the default storage engine for MySQL (Mysql5.5.5 before MyISAM, documentation). In the purpose of
Http://www.bubuko.com/infodetail-1861798.html1 Various tree-shaped structuresOriginally not intended to start from the two-fork search tree, because there are too many related articles on the Internet, but considering the clear diagram of the
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