找出缺考过任意科目的学生名单 验收标准： 4条查询全部跑通，结果正确 能口头解释每一条SQL的执行逻辑（不是念SQL，是解释"数据库拿到这条SQL后怎么一步步算出结果"） 📦 模块二：子查询与CTE（第4-5天） 这是区分"学过SQL"和"会写SQL"的分水岭。

So far, I've learned and practiced: • SQL command categories (DDL, DML, DQL, DCL, TCL) • Creating and altering databases and tables • Data types and constraints • Inserting and querying data using ...

Full Stack Developer with 1 years of experience in the complete SDLC, including requirement gathering, design, development, and unit testing of web-based applications. Skilled in both frontend and ...