"update-continuous-backups" enables or disables point in time recovery for the specified table.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/dynamodb/update-continuous-backups.html
| aws dynamodb update-continuous-backups \ |
| Restoring a DynamoDB Table to a Point in Time - Amazon DynamoDB : http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/PointInTimeRecovery.Tutorial.html |