Primary Key and Range Key
Explore the roles of primary keys and range keys in DynamoDB. Understand why a unique primary key is crucial for item storage and retrieval. Learn when and how to use a range key to support advanced access patterns and ensure efficient data queries.
We'll cover the following...
We'll cover the following...
Need for primary key
Have you ever worked with a hash map? A hash map is a key-value store. Now, we do not need to know a lot about the internal workings of hash maps. But the contract it offers is simple:
get(Key): returns the value for a givenKey.put(Key, Value): saves thevaluecorresponding to theKey.
To work with a hash map or any key-value store, you need a set of keys. Keys are basically used to identify an individual ...