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+# Open Gauss
+
+An open-source relational database. With multi-core architecture-oriented ultimate performance, full-link service, data security, AI-based optimization, and efficient O&M capabilities.
+
+### openGauss is a database management system (DBMS).
+
+A database is a structured dataset. And the duty of a DBMS is to manage and control the database in a unified manner to ensure the security and integrity of database.
+
+### An openGauss database is a relational database.
+
+A *relational database* organizes data using a relational model, which represents data is stored in rows and columns. A series of rows and columns in a relational databse are called *tables* which form the database. A *relational model* can be simply understood as a two-dimensional table model, and a *relational database* is a data organization consisting of two-dimensional tables and thier *relationships*.
+
+SQL is a standard computer language often used to control the access to databases and manage data in databases. Depending on your programming environment: 
+
+- Enter SQL statements directly.
+- Embed SQL statements into code written in another language.
+- Use specific language APIs that contain SQL syntax.
+
+### openGauss is an open-source software.
+
+Open-source means that anyone can use and modify the software. Anyone can download the openGauss software and use it at no cost.