Perform the following steps:

1. Sign in to the AWS Management Console and open the DynamoDB console at https://console.aws.amazon.com/dynamodb/.
2. In the DynamoDB navigation pane, choose Tables and choose user-visits.
3. On the user-visits pane, choose the Items* tab.
4. Choose Create Item.
5. In the Create Item popup:
   1. Under EventId String, type 324
   2. Under EventDay Number, type 20171001
   3. Choose + > Append>Number, for field, type EventCount, and for Number, type 3
   4. Choose Save

You will now see a new record has been added in the Items tab in the lower-right pane, as the scan has also been done automatically.

DynamoDB is a managed NoSQL database, which means that each row can have different columns, and the names of the columns, known as attributes, are case-sensitive.