Amazon DynamoDB + Chatter Integrations

Amazon DynamoDB is a web service that provides scalable, low-latency performance with no configuration. It is fully managed and requires no setup or administration, and it has a pay-as-you-go pricing model.

What is Amazon DynamoDB?

Amazon DynamoDB is a fully managed NoSQL database service that delivers fast and predictable performance with seamless scalability. It is easy to use and offers query capabilities with server-side caching, making it simple to scale up when your application requires more throughput. Amazon DynamoDB supports both document and key-value storage models, so you can choose the one that best fits your application requirements.Amazon DynamoDB's primary data model is based on tables, which are collections of items. A table is defined by its primary key, which serves as an identifier for each item in the table. You can think of a table as a logical container for related items. For example, an online bookseller could create a table named Books that contains information about the books available for sale, including their prices and the categories they belong to. You can use different types of indexes to provide quick access to this information. A global secondary index lets you query all of the items within a single table using a single value. A local secondary index lets you query items within a single partition using multiple attributes. You can also create hash and range indexes to look up specific items within a single partition quickly.In addition to supporting basic CRUD (create, read, update, delete. operations on items in a table, you can also employ conditional writes to streamline your application's data management logic. For example, suppose you want to ensure that any new item added to your table has been approved by the appropriate department before adding it to the database. With conditional writes, you can first check whether the item meets certain criteria (in this case, approval by a department manager), and then either add or reject the item depending on what the criteria are.

What is Chatter?

Chatter is a social networking platform for organizations. It allows users to connect through the cloud with other people inside of an organization. It allows users to connect their Facebook and Twitter accounts to link them to their company profile, post updates and photos to share with co-workers and friends, discover what people like in common with team members and friends, share files and collaborate on documents, schedule meetings and events, start groups with topic conversations, and follow topics of interest.

B. What is Integration of Amazon DynamoDB and Chatter?Integration of Amazon DynamoDB and Chatter can be used in various applications such as:

•  An online retailer may want to create a real-time feed of what is being bought across all of Amazon's stores. The retailer may want to use Amazon DynamoDB as its backend NoSQL database because it can accept write requests from thousands of applications simultaneously while providing consistent low latency at any scale and it ensures that each write request will succeed or fail exactly once.
•  A bank may create an application that allows customers to manage their finances through the bank's website. Customers may be able to access account balances and recent transactions by logging into the bank's website or by using its mobile app. In order to meet this demand, the bank may need a scalable database solution to store customer account information. The bank may decide to use Amazon DynamoDB in order to have a persistent layer between their database server layer and their application layer. This would allow them to keep only recent data in their main database while keeping older data in Amazon DynamoDB. The bank would then update the latest transactions in their main database after they are written into Amazon DynamoDB asynchronously. This would increase overall bank efficiency because there would be less data being sent over the network and less data being stored on their main database servers.

3.  An online chat service may want to store messages from their users in a persistent layer. The messages could be text messages, voice messages, pictures or videos sent from users' phones or computers or web sites interacting with their server. Because the chat service wants to store many types of messages from numerous users while still allowing for fast access, they may choose Amazon DynamoDB because it can support both document and key-value storage models so they can easily store any type of message without having separate databases for each type of message.C. Benefits of Integration of Amazon DynamoDB and Chatter

There are benefits of integration of Amazon DynamoDB and Chatter:

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