What are the data models and APIs supported by DynamoDB

Question

Can you describe the data models and the APIs that are supported by DynamoDB?

Answer 1

There are multiple sets of data models and APIs that you can use with DynamoDB. You can take a look at the things you want to use in the documentation provided by them called How to use DynamoDb.

https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.html

Answer 2

The Data model that is used by DynamoDB is a key-value data model. DynamoDB stores data in tables which is a collection of items and the items are key-value pairs referred by DynamoDB as attributes. Like most NoSQL databases, DynamoDB has dynamic schema and it does not enforce schema as items in a table can have different attributes. You can learn more about the differences of NoSQL and SQL databases here https://www.datavail.com/blog/sql-and-nosql-database-comparison-when-is-a-nosql-database-a-better-option-than-a-traditional-rdbms/

. DynamoDB supports composite keys and secondary indexes.  

Comments

When you say DynamoDB has dynamic schema, what does that mean?