B Plus Tree Index Files Assignment Help And Online Tutoring

A B+ tree or B plus tree is a type of tree which represents classified data in a way that allows for efficient insertion, retrieval and remotion of records, each of which is identified by a key. It is a dynamic, multilevel index, with maximum and minimum bounds on the number of keys in each index segment. In a B+ tree, all records are stored at the leaf level of the tree; only keys are stored in interior nodes.

fig:B-Plus Tree

The primary value of a B+ player is in storing data for efficient retrieval in a block-oriented storage context-in particular, filesystems. This is primarily because unlike binary search tree, B+ trees have very high fanout, which reduces the number of I/O operations required to find an element in the tree.

B Plus Tree Index Files:

B+-tree indices are an alternative to indexed-sequential files.

• A B+ index tree is a balanced tree in which every path from root to leaf is of equal length and each non leaf node has between ceiling(n/2) and n nodes where n is fixed.
  
  
• B+ tree index structure is most widely used of various index structures that maintain their despite insertion and deletion of data.