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18 lines
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:original_name: ddm_api_01_0002.html
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.. _ddm_api_01_0002:
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Overview
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========
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Welcome to Distributed Database Middleware (DDM). This document describes functions, syntax, parameters, and examples of DDM.
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If you plan to access DDM through an API, ensure that you are familiar with DDM concepts.
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This document describes how to use application programming interfaces (APIs) to perform creating, querying, deleting, and updating operations.
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.. note::
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- This document will be updated when APIs of new functions are added, for example, adding response parameters.
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- To reduce impacts caused by API changes, DDM is backward compatible with existing APIs. When using DDM, you should accept and ignore unused parameters and parameter values in JSON responses.
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