Question: What does the DynamoDB query return?
Answer
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)
- Should you make a new DynamoDB client for each request?
- Is DynamoDB HIPAA compliant?
- How to create an index in DynamoDB? (how to create an index in dynamodb)
- Is DynamoDB highly available?
- What are the naming conventions in DynamoDB?
- Can glue write to DynamoDB?
- Is DynamoDB expensive?
- How to import data from S3 to DynamoDB?
- Does DynamoDB Support SQL?
- Can DynamoDB table have adhoc attributes?
- How to connect to DynamoDB?
- Can we rename DynamoDB table?
- Can you store XML in DynamoDB?
- In DynamoDB, can I use UUID as the partition key?
- Can DynamoDB run on Mac OS?