This one is a simple SQL problem. Here is the link to this problem. This one is an absolute beginner type problem. We have to query all the duplicates emails from the given table. The name of the table is Person. The code is almost self-explanatory. All SQL keywords are written in uppercase letters. It’s […]
Duplicate Emails | LeetCode 182 | SQL | Solution Read More »
This one is database related problem and pretty easy. Click here to see the problem on LeetCode. Read the description and try to understand the problem. Note: I assumed that you have basic knowledge of SQL language. The actual problem is, we have to retrieve data from the database with some condition. We have to
620. Not Boring Movies | LeetCode | SQL | Solution Read More »
This problem is not about programming related. It’s about the database. Here is the link to the problem. There is a table called the world. It contains some information about countries around the world. These are name, continent, area, population, etc. To solve this problem, we have to write a SQL solution to output big
595. Big Countries | Database | LeetCode | Solution Read More »