Question: Consider the B+-tree index, below: a. A record has just been added to Cylinder 6, causing a cylinder split. The highest key value on Cylinder

Consider the B+-tree index, below:

a. A record has just been added to Cylinder 6, causing a cylinder split. The highest key value on Cylinder 6 is now 2156, the highest key value on Cylinder 20, and the empty reserve cylinder that received half of Cylinder 6’s records is now 2348. Update the tree index accordingly.

b. A record has just been added to Cylinder 10, causing a cylinder split. The highest key value on Cylinder 10 is now 3780, the highest key value on Cylinder 25, and the empty reserve cylinder that received half of Cylinder 10’s records is now 3900. Update the tree index accordingly. (Note:

this question is intended to be independent of the 1644 2769 4263 5283 0524 0709 1318 1644 1971 2348 2769 3326

question in part

a. Start each of parts a and b from the figure shown.)

1644 2769 4263 5283 0524 0709 1318 1644 1971 2348 2769 3326 3684 3900 4263 4547 4904 5283 To cylinder To cylinder 1 2 To cylinder 8 To cylinder 10

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