Creating a data store
A data store receives and stores your messages. It is not a database but a scalable and queryable repository of your messages. You can create multiple data stores to store messages that comes from different devices or locations, or your can use a single data store to receive all of your Amazon IoT messages.
aws iotanalytics create-datastore --datastore-name mydatastore
To list the data stores you have already created.
aws iotanalytics list-datastores
To get more information about a data store.
aws iotanalytics describe-datastore --datastore-name mydatastore