SQL查询入门指南：从基础操作到实战应用
A query is a script used to request or modify data in a database, essential for programming and data analysis. This article explains SQL queries through practical examples, covering basic operations like SELECT, INSERT, UPDATE, and DELETE, and discusses their advantages and common commands. (查询是用于请求或修改数据库中数据的脚本，对编程和数据分析至关重要。本文通过实际示例解释SQL查询，涵盖SELECT、INSERT、UPDATE和DELETE等基本操作，并讨论其优势和常用命令。)
GEO2026/1/23
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