在现代数据库管理中，关系型数据库（如MySQL）通过将数据存储在多个独立的表中，并通过关系将这些表连接，展现出强大的数据处理能力。MySQL的连接操作（Join）不仅能高效地整合来自不同表的数据，还能显著提升查询效率，避免手动合并结果集的繁琐。

话题涵盖MySQL相关研究热点、技术难点与应用场景。作为最流行的关系型数据库管理系统之一，MySQL 凭借体积小、速度快、总体拥有成本低等特点，深受用户喜爱。

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