B-Tree Deletion Algorithm

Efficient Data Storage & Retrieval B-Trees organize data for fast searching, insertion, and deletion. See how keys are removed while keeping the tree balanced.

B-Tree Deletion

B-tree deletion removes a key from the tree while preserving its balanced structure. The process ensures that all nodes (except the root) maintain the required minimum number of keys.
Merging, borrowing, and rebalancing during B-tree key deletion:

• Locate and remove the key from a leaf or internal node.
• If the key is in an internal node, replace it with its in-order predecessor or successor.
• If a node has fewer keys than required after deletion, borrow a key from a sibling or merge nodes.
• Rebalance the tree by adjusting parent keys as needed.
• Continue this process up the tree to maintain B-tree properties.