:original_name: gaussdb_00_0001.html

.. _gaussdb_00_0001:

Overview
========

GaussDB(for MySQL) is a MySQL-compatible, enterprise-grade distributed database service. It uses a compute-storage decoupled architecture and supports up to 128 TB of storage. With GaussDB(for MySQL), there is no need to do sharding, and no need to worry about data loss. It provides superior performance of commercial databases at the price of open-source databases.

.. note::

   Data Function Virtualization (DFV) is a high-performance and high-reliability distributed storage system that is vertically integrated with databases. Storage clusters are deployed in pools to improve storage utilization.

This document describes how to use application programming interfaces (APIs) to perform operations on DB instances. For details about all supported operations, see :ref:`API Overview <gaussdb_02_0000>`.

If you plan to access GaussDB(for MySQL) through an API, ensure that you are familiar with GaussDB(for MySQL) concepts. For details, see `Introduction <https://docs.otc.t-systems.com/gaussdb-mysql/umn/introduction/index.html>`__ in *GaussDB(for MySQL) User Guide*.
