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.
Other Common DynamoDB FAQ (with Answers)
- Is DynamoDB expensive?
- How many secondary indexes are allowed per table DynamoDB?
- What is the maximum number of partitions in DynamoDB?
- Is DynamoDB cost effective?
- Why must table be empty to enable DynamoDB global tables?
- Why is Single-Table-Design popular in DynamoDB?
- How to store Japanese characters in DynamoDB?
- How to forcefully delete a DynamoDB table?
- Can I add another region to global DynamoDB?
- How to access DynamoDB from Apache Hive?
- How to store location coordinates in DynamoDB?
- Do I need a middleware for DynamoDB?
- How many DynamoDB tables can I have at a maximum?
- Should you make a new DynamoDB client for each request?
- Does sharding affect DynamoDB reads?