随着企业对数据库依赖的加深，掌握SQL优化能力成为DBA和开发人员的必备技能。近日，郭一军老师推出《Oracle SQL Tuning（DSI系列Ⅲ）》课程，深入讲解SQL优化方法论、CBO算法、Transformation优化技巧等，助力学员快速提升SQL优化能力，挑战高薪职位。 Oracle SQL Tuning的 ...

数据库基础概念：学习数据库的基本概念，如数据库管理系统表、行、列、索引、事务等。可以阅读《数据库系统概念》这样的经典教材，系统地掌握数据库的基础知识。 SQL 语言：SQL 是与数据库交互的主要语言。学习 SQL 的基本语法，包括数据定义语言（DDL ...

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Money is the one tool we all use, and anyone can sharpen their skills with it. Those are the words that Stephanie Batten lives by as she helps others hone their financial literacy skills.