Amazon DynamoDB vs Couchbase

• It's very easy to get started, creating a table with a partition/sort key and you're on your way.
• You can scale up and down your read/write IO as needed.
• You can store structured and unstructured data.
• It works great with Web Development as it's JSON based.

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• Key/value data store. Couchbase is blazing fast at data access and retrieval when you know what keys you want to access.
• Data querying with N1QL. If you have your indexes set up right, searching your unstructured data can be really fast too.
• Management dashboard. The Couchbase platform has a great admin panel that provides tons of insights into how your cluster is performing.

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• Complex searching (no support for case-insensitive or full-text search).
• Only supports up to two-key indexes.
• Requires choosing the indexes up-front when doing searches.
• Does not have an SQL compatible query front-end.
• No join-table support (requires putting all data into one table).

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• Should allow servers to change their roles on the fly - currently you will need to take down the server and re-assign roles
• SDK documentation is not as helpful and should have more examples
• No pre-compiled procedures - unlike in SQL Server, Couchbase does not have pre-compiled stored procedures therefore we have to run various test to optimize our application

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• Since the Amazon manages the instance, the amount of time a developer needs to spend configuring the database is less. For comparison, if we were to manage the same instance manually, we need to set up EC2 instance, install the DB, setup backup scripts, track backup failures, which is a great overhead for the dev. Using DynamoDB this overhead is reduced and hence having a great ROI.
• Great documentation and easy setup makes an easy learning curve to transition to DynamoDB. Only caveat is as with any database, the data structure should be thoroughly analyzed for types of querying because there are limitations with the DynamoDB API.
• Ties very well with rest of the Amazon eco system. Having rest of the applications in Amazon allows managing the application security a breeze.

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• The ease of deployment and scalability withing Couchbase has been a great asset to our teams, allowing us to deploy a solution in Couchbase in 20 mins.
• We have yet to deploy an existing application into Couchbase, but hope to see massive performance improvements once we do so.
• New deployments have gone smoothly as we have transitioned to using Couchbase for new product offerings.

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