DynamoDB – Local Secondary Indexes Some applications only perform queries with the primary key, but some situations benefit from an alternate sort key. Allow your application a choice by creating a single or multiple local secondary indexes. Complex data access requirements, such as combing millions of items, make it necessary to perform more efficient queries/scans. […]
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DynamoDB – Global Secondary Indexes Applications requiring various query types with different attributes can use a single or multiple global secondary indexes in performing these detailed queries. For example − A system keeping a track of users, their login status, and their time logged in. The growth of the previous example slows queries on its […]
DynamoDB – Indexes DynamoDB uses indexes for primary key attributes to improve accesses. They accelerate application accesses and data retrieval, and support better performance by reducing application lag. Secondary Index A secondary index holds an attribute subset and an alternate key. You use it through either a query or scan operation, which targets the index. […]