Instead of locking index leaf nodes in a two-phase manner, some index concurrency-control schemes use ___________ on individual key values, allowing other key values to be inserted or deleted from the same leaf.

Instead of locking index leaf nodes in a two-phase manner, some index concurrency-control schemes use ___________ on individual key values, allowing other key values to be inserted or deleted from the same leaf. Correct Answer Key-value locking

Key-value locking thus provides increased concurrency.

Related Questions

Statement 1: When a node is split during insertion, the middle key is promoted to the parent as well as retained in right half-node. Statement 2: When a key is deleted from the leaf, it is also deleted from the non-leaf nodes of the tree.