Learn about the execution plan information returned by the EXPLAIN statement in TiDB.

This quiz contains questions on topics you can expect to see in an interview pertaining to SQL and Relational Databases. Some of them are multiple choice, while some are short answer. For these short ...

几年来，我发现一个定律：所有SQL问题都是在凌晨三点爆发！ 今天抽丝剥茧，教你用架构师的思维给慢SQL开刀手术。 希望对你会有所帮助。 使用EXPLAIN查看SQL语句的执行计划，相当于给SQL拍了张X光。 下面是一个典型的SQL问题，它是某电商平台历史订单查询的SQL ...

The AI winners won’t be the ones slapping “AI” on a landing page — they’ll be creating products enterprises can't live without.

这次我们来看看今年一位 Java 校招同学的瓜子二手车一二面的面经，两面都没有问算法，每一面的时长大概是 30 分钟，拷打的技术问题也不算多，不到 10 个。 可重入锁：Redisson ...