如果从HackerRank首页进入，先点击Sign up and practice按钮，注册或登录 再在Prepare页面找到Prepare By T...
1. HackerRank From software engineering to data analytics, HackerRank is one of the best platforms for practicing coding interview questions.HackerRank’s SQL practicesuite has hundreds of questions available for you to practice. You can filter the questions by their difficulty levels: easy, medium, ...
q2.difficult_level,ROUND(count(u.question_cnt)/count(DISTINCT(u.device_id)),4)asavg_answer_cntfromuser_profile ujoinquestion_practice_detail q1onu.device_id=q1.device_idjoinquestion_detail q2onq1.question_id=q2.question_idwhereu.university='山东大学'groupby1,2; 解题思路:1⃣️多表连接 2...
Hands-On Practice:Dive headfirst into practical exercises and real-world scenarios to bolster your SQL proficiency. Engage with platforms like HackerRank to tackle coding challenges and refine your problem-solving skills. Interactive Learning Platforms:Explore interactive learning platforms such as DataCamp ...
Here are 72 public repositories matching this topic... Language:All Sort:Most stars SPPU TE COMP DBMS ASSIGNMENTS mysqlsqldatabaseplsqlsqldeveloper UpdatedNov 13, 2022 Python arelisuleima/SQL-and-PL-SQL Star8 Practice exercises (queries) in PL/SQL 🐸. ...
SQL/MySQL Cheatsheet and Practice Questions mysql sql cheatsheet mysql-solutions hackerrank-sql-solutions sql-practice sql-cheatsheet sql-solutions Updated Oct 25, 2022 dori-dev / sql-cheatsheet Star 3 Code Issues Pull requests SQL cheat sheet for simple sql commands. mysql sql database sqli...
Here are5-7 quick tipsfor succeeding in anSQL interview: Master SQL Basics: Understand core concepts like SELECT, JOIN, GROUP BY, and aggregation functions. Practice Regularly: Solve SQL problems on platforms like LeetCode, HackerRank, or SQLZoo to sharpen your skills. ...
Problem-Solving: SQL practice exercises challenge you to solve practical problems, enhancing your problem-solving skills. Efficiency: Proficiency in SQL allows you to work more efficiently, saving time and effort in data retrieval and manipulation. ...
This statement addsSomalias a new country into thecountriestable. It is a good practice to specify the column names and values when inserting rows into the table. Read a table When we want to look up the data that we stored in the database, we use theSelectstatement. ...
Repository of SQL projects, case studies, platform solutions, and learning resources to enhance SQL skills through practical applications. Includes content from DataLemur, LeetCode, HackerRank, and more. mysqlsqldbmshackerrankleetcode-solutionshackerrank-solutionsinterviewbitcasestudiesinterviewbit-solutionspost...