Glossary: System Design Basics in C#
Shard / Shard key
Also written: shard, shards, shard key
A shard is one piece of a table split across databases. The shard key, such as `customer_id`, is the column whose value decides which shard holds a row.
Glossary: System Design Basics in C#
Also written: shard, shards, shard key
A shard is one piece of a table split across databases. The shard key, such as `customer_id`, is the column whose value decides which shard holds a row.