Dynamo db export to csv

问题

I have a serverless project, I'm trying to export Dynamo DB tables into single csv, and then upload it to S3.

All npm modules i checked export single table. Is there a way to export multiple table data into one single csv?

回答1:

The AWS CLI can be used to download data from Dynamo DB:

aws dynamodb scan --table-name my-table --select ALL_ATTRIBUTES --page-size 500 --max-items 100000

The --page-size is important, there is a limit of 1M (megabyte) for every query result.

回答2:

To export as a CSV, adding onto @dixon1e post, use jq in the shell. With DynamoDb run:

aws dynamodb scan --table-name my-table --select ALL_ATTRIBUTES --page-size 500 --max-items 100000 --output json | jq -r '.Items' | jq -r '(.[0] | keys_unsorted) as $keys | $keys, map([.[ $keys[] ].S])[] | @csv' > export.my-table.csv

来源：https://stackoverflow.com/questions/49054868/dynamo-db-export-to-csv