Construction of B+ Tree

What is a B+ Tree?

B+ trees are employed to store enormous data that does not even fit in the main memory. The internal nodes of the B+ Tree (nodes used to access records) are saved to the secure memory whereas the leaf nodes are written to the secondary memory because of limited main memory....

Construction of B+ Tree

Begin with the tree empty. Insert records sequentially, adjusting the tree as necessary to ensure balance. Internal nodes contain search keys and pointers to child nodes and leaf nodes keep actual data records....

Searching in B+ Tree

Start from the root node and compare the search key. Traverse the tree using comparison until reaching the required leaf node. Carry out a sequential search within the leaf node to get the required record....

Insertion in B+ Tree

Create records at appropriate leaf level. If the insertion results in the leaf node to be full, split the node and update the parent node. Ripple up to root when necessary....

Deletion in B+ Tree

Place and erase the required record from the leaf node. If removal results in underflow of a node borrow from a neighbouring node or merge two nodes. Propagate up to the root if needed....

Advantages of B+ Tree File Organization

This process becomes quite simple because all records are stored only in leaf nodes and they follow a sequential linked list. Navigating the tree structure is simpler and quicker. The size of B+ tree is unlimited and thus it can grow in records while, its structure may also decay. It is quite a balanced tree setup. In this case, no matter what insertion, update or deletions across the tree one can do there is of cost about performance....

Disadvantages of B+ Tree File Organization

For the static method, B+ tree file organization is very inefficient....

Conclusion

Data processing in the realm of DBMS is efficiently realized via the robust B+ file organization. Considered a valuable asset in situations where fast and well-organized data retrieval is critical. Being aware of the subtleties of B+ file organization allows the efficient use of this approach for the problem of database performance optimization....

Frequently Asked Questions on B+ File Organization – FAQs

What differentiates B+ file organization from other file organizations?...