表（Table）：表是Oracle数据库中存储数据的基本结构单元

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表（Table）：表是Oracle数据库中存储数据的基本结构单元，由行（Row）和列（Column）组成。每行代表一个记录，每列代表一个字段。

SQL（Structured Query Language）：SQL是Oracle数据库的核心语言，用于与数据库交互，执行查询、插入、更新和删除等操作。

数据库实例与数据库：在Oracle中，数据库实例是一组后台进程和内存结构，用于管理数据库并提供服务。

而数据库则是数据的物理存储，包括数据文件、控制文件、联机日志和参数文件等。













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