Distributed Database Middleware =============================== Distributed Database Middleware (DDM) removes database capacity and performance bottlenecks and resolves distributed expansion issues. It provides database and table sharding, read/write splitting, and elastic scaling, helping you handle highly concurrent access to massive volumes of data and improving database read/write performance. .. directive_wrapper:: :class: container-sbv .. service_card:: :service_type: ddm :umn: This document describes basic concepts, functions, key terms, and FAQs of Distributed Database Middleware (DDM) and provides instructions for applying for and using DDM. :api-ref: This document describes application programming interfaces (APIs) of Distributed Database Middleware (DDM) and provides API parameter description and example values.