What are the differences between hash indexing and B-trees?

What are the differences between hash indexing and B-trees?

Hash indexing uses a hash function to map keys to locations, while B-trees maintain a sorted structure for range queries.

When should I use hash indexing instead of B-trees?

Use hash indexing for equality searches where speed is crucial, and B-trees for range queries and sorted data.

Are there any drawbacks to using hash indexing?

Yes, hash indexing can lead to collisions and is not efficient for range queries, unlike B-trees.

Can you give me an example of when to use a B-tree?

B-trees are ideal for databases that require frequent insertions, deletions, and range queries, like in a library system.