The platform has over 40 SQL interview questions on topics such as conditional aggregation, string and window functions, and cumulative sums. 5. LeetCode If you are a Leetcode user, you can practice SQL on it to
恭喜你SQL出师了!!这阶段的练习网站建议:Leetcode,有些困难难度的SQL是真恶心,几个月前去扫题的时候被好几道题难住了... 2.4 ·伪 其他小语法 其实这不能算2.4阶段,主要是我认为一些不适合放在主学习流程但是需要一提的SQL语法。在第一版的时候是嵌在上述三个阶段里的,改版后被我单独拉了出来。这些语法大...
Practice Regularly: Solve SQL problems on platforms like LeetCode, HackerRank, or SQLZoo to sharpen your skills. Optimize Queries: Focus on writing efficient queries by using proper indexing and understanding query plans. Know Advanced Concepts: Be prepared to discuss window functions, CTEs, normalizat...