Document Database Service ========================= Document Database Service (DDS) is a cloud computing-based NoSQL database featuring high performance storage, high availability architecture, and disaster recovery failover, along with online scaling, backup, and restoration capabilities. It has a mature performance monitoring system, a multi-level security protection mechanism, and a professional database management platform. .. directive_wrapper:: :class: container-sbv .. service_card:: :service_type: dds :environment: internal :umn: This document describes basic concepts, functions, key terms, and FAQs of Document Database Service (DDS) and provides instructions for applying for and using DDS. :api-ref: This document describes application programming interfaces (APIs) of Document Database Service (DDS) and provides API parameter description and example values. :best-practice: To use Document Database Service more securely, reliably, flexibly, and efficiently, you are advised to follow the following best practices.