This DynamoDB tutorial will cover the basics of the database. You will learn about Tables, Transactions, Read capacities, and Key-value access patterns. In addition, you’ll discover how to set up and configure the database. Moreover, you’ll learn about how to use the DynamoDB console to access the database.
While transaction processing is an important feature of a database, the way that it’s done in DynamoDB is different from those in SQL databases. For example, while the latter supports MVCC (multiple value-chain concurrency control), DynamoDB’s transactions don’t. Instead, they adopt a simple one-shot transaction model.
In order to use transaction capabilities, DynamoDB must be configured correctly. One way is to make sure that all the transactions in a database are idempotent. This can be done through a parameter known as ClientRequestToken. DynamoDB also supports a transaction write API that groups multiple operations, which allows you to group a single Get operation into several separate transactions.
If you need to perform multiple updates of a table, transactions are the best option. This allows you to atomically update multiple tables without the risk of conflicting with each other. You can also roll back failed operations in transaction-based databases, which is very convenient when it comes to updating many data tables at once.
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