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Question: What are the naming conventions in DynamoDB?

Rafal Wilinski

Answered by Rafal Wilinski

Answer

In DynamoDB, the naming conventions for tables, primary keys, and secondary indexes are as follows:

Table names: Must be unique within your AWS account and can contain only alphanumeric characters and underscores. The maximum length is 255 characters.

Primary key: The primary key is used to identify each item in a table uniquely and can be either a simple primary key (also known as a partition key) or a composite primary key (consisting of a partition key and a sort key).

  • Partition key: This must be unique within each partition and can contain any string or number.

  • Sort key: Can be used to sort items within a partition and contain any string or number.

Secondary indexes: Allow you to create additional indexes on a table that can be either global or local.

  • Global secondary index: This can have a different partition key and sort key than the primary key and can be created on any table.

  • Local secondary index: Must have the same partition key as the primary key but can have a different sort key.

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