B+ trees preferred over binary trees in databases
Q. Why are B+ trees preferred over binary trees in databases?- Published on 16 Jun 15a. Disk capacities are greater than memory capacities
b. Disk access is much slower than memory access
c. Disk data transfer rates are much less than memory data transfer rates
d. Disks are more reliable than memory
ANSWER: Disks are more reliable than memory
Transfer of data from disk to primary memory is in form of data blocks. These data blocks can store large information while transferring,transferring on single block is more efficient.
