Question: What does the DynamoDB query return?
The DynamoDB query operation returns one or more items from a table or a secondary index. The query operation retrieves data from a table or index using the primary or secondary key.
When performing a query operation, you need to specify the table or index name, the primary or secondary index key, and a condition expression. The condition expression is used to filter the items that are returned by the query operation.
The query operation returns the items as an unordered set of items. The returned items are limited to the maximum number of items specified in the query request. If the query results in more items than the specified limit, the operation returns a LastEvaluatedKey value that can be used to retrieve the next set of items.
If you use the optional "ProjectionExpression" attribute, the query will return only the specified attributes and not the whole item.
Other Common DynamoDB FAQ (with Answers)
- What type of database is DynamoDB?
- Is DynamoDB NoSQL?
- In DynamoDB, can I use UUID as the partition key?
- Does DynamoDB support atomic updates?
- Does DynamoDB Support SQL?
- What are the naming conventions in DynamoDB?
- How is data stored in DynamoDB?
- Is DynamoDB open source?
- How to create an index in DynamoDB? (how to create an index in dynamodb)
- What is DynamoDB used for?
- What is DynamoDB white paper, and what are the key takeaways?
- Why is AWS DynamoDB charging me?
- Can we store list in DynamoDB?
- Is DynamoDB expensive?
- Is DynamoDB stateless?