Is it possible to export data from DynamoDB table in some format?
The concrete use case is that I want to export data from my production dynamodb database and import
There is a tool named DynamoDBtoCSV
that can be used for export all the data to a CSV file. However, for the other way around you will have to build your own tool. My suggestion is that you add this functionality to the tool, and contribuite it to the Git repository.
Another way is use AWS Data Pipeline for this task (you will save all the costs of reading the data from outside AWS infraestructure). The approach is similar: