构建和维护B树结构

B-trees are extensively employed in file systems and database systems, where they are particularly useful for organizing dynamic index structures. This data structure is a type of balanced multiway tree, characterized by its ability to have multiple child nodes per parent node (branching factor), ensuring balanced growth across all leaf nodes at the same depth to prevent one-sided extension. The term "order" in B-trees refers to the maximum number of child nodes that a single node can have, typically denoted by m. It is generally advisable to set m ≥ 3 to optimize search efficiency.

定义