relational database structured query language
关系数据库结构化查询语言
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Work with a relational database: Structured Query language.
处理关系数据库：结构化查询语言。
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This traditional database platforms, known as relational database management systems (RDBMS) all use a language called SQL (structured query language).
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