Question: What are the naming conventions in DynamoDB?

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).
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Partition key: This must be unique within each partition and can contain any string or number.
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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.
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Global secondary index: This can have a different partition key and sort key than the primary key and can be created on any table.
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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 cost effective?
- Is DynamoDB similar to MongoDB?
- Can DynamoDB trigger AWS Step Functions?
- Can DynamoDB have null values?
- Is DynamoDB real-time?
- How to import data from S3 to DynamoDB?
- Can firehose write to DynamoDB?
- Why is Single-Table-Design popular in DynamoDB?
- Can DynamoDB store images?
- How do parallelize requests in DynamoDB?
- Why is DynamoDB better than MongoDB?
- How do you store JSON on DynamoDB?
- How to divert the traffic from S3 to DynamoDB?
- Can we rename DynamoDB table?
- Can we pass objects as an item in DynamoDB?