How to Restore a DynamoDB Table Quickly and Safely

To restore a DynamoDB table, use the RestoreTableFromBackup API or AWS CLI command with the backup ARN and a new table name. This creates a new table restored to the backup state without affecting the original table.

Syntax

The RestoreTableFromBackup operation requires specifying the target table name and the backup ARN. The new table name must be unique in your AWS account and region.

• TargetTableName: The name for the restored table.
• BackupArn: The Amazon Resource Name of the backup to restore from.

bash

aws dynamodb restore-table-from-backup --target-table-name <new-table-name> --backup-arn <backup-arn>

Example

This example shows how to restore a DynamoDB table named UsersBackup to a new table called UsersRestored using AWS CLI.

bash

aws dynamodb restore-table-from-backup \
  --target-table-name UsersRestored \
  --backup-arn arn:aws:dynamodb:us-west-2:123456789012:table/UsersBackup/backup/015f7f3a-1234-5678-90ab-cdef12345678

Output

{
    "TableDescription": {
        "TableName": "UsersRestored",
        "TableStatus": "RESTORING",
        "ProvisionedThroughput": {
            "ReadCapacityUnits": 5,
            "WriteCapacityUnits": 5
        },
        "ItemCount": 0,
        "TableSizeBytes": 0
    }
}

Common Pitfalls

• Using the same table name: You cannot restore a backup to a table name that already exists in your account and region.
• Backup ARN mistakes: Ensure the backup ARN is correct and the backup is in the same region.
• Restore time: The restore process can take several minutes; the table status will be RESTORING until complete.
• Permissions: Your AWS user must have dynamodb:RestoreTableFromBackup permission.

bash

## Wrong: Using existing table name
aws dynamodb restore-table-from-backup --target-table-name UsersBackup --backup-arn <backup-arn>

## Right: Use a new unique table name
aws dynamodb restore-table-from-backup --target-table-name UsersRestored --backup-arn <backup-arn>

Quick Reference

Parameter	Description
TargetTableName	Name of the new table to create from backup
BackupArn	ARN of the backup to restore
TableStatus	Status of the restored table (e.g., RESTORING, ACTIVE)
Permissions	Requires dynamodb:RestoreTableFromBackup permission

Key Takeaways

Restoring a DynamoDB table creates a new table; it does not overwrite the original.

Always specify a unique target table name when restoring from backup.

Use the backup ARN from the same AWS region as your restore operation.

Restoration can take several minutes; monitor the table status until ACTIVE.

Ensure your AWS user has the correct permissions to restore tables.