今天的 udemy.com 限免课程之一是这门 SQL Tuning，讲解的是 SQL 数据库的优化教学，对此有兴趣的朋友就好好学习下吧。
获取地址：https://www.udemy.com/sql-tuning/?couponCode=BHATF
udemy.com 限免课程 SQL Tuning
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