Fundamentals
Why an index makes reads faster
A smaller map can save a lot of searching. But that map has a cost of its own.
Notes on databases & data systems
Bread Butter Bytes.
Databases, explained from the inside out.
Notes on databases & data systems
Databases, explained from the inside out.
Fundamentals
A smaller map can save a lot of searching. But that map has a cost of its own.
Replication
A successful write and an up-to-date replica are two different things.
Performance
A faster lookup adds something else to maintain whenever the data changes.