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Create A Session Bar Chart Problem

LeetCode 1435. You want to know how long a user...

Big Countries Problem

LeetCode 595. Write a SQL solution to output big countries’...

Average Selling Price Problem

LeetCode 1251. Write an SQL query to find the average...

Article Views I Problem

LeetCode 1148. Write an SQL query to find all the...

Actors And Directors Who Cooperated At Least Three Times Problem

LeetCode 1050. Write a SQL query for a report that...

Unique Orders And Customers Per Month Problem

LeetCode 1565. Write an SQL query to find the number...

Sellers With No Sales Problem

LeetCode 1607. Write an SQL query to report the names...


Rising Temperature Problem

LeetCode 197. Write an SQL query to find all dates’...

Game Play Analysis IV Problem

LeetCode 550. Write an SQL query that reports the fraction...

Game Play Analysis III Problem

LeetCode 534. Write an SQL query that reports for each...

Game Play Analysis II Problem

LeetCode 512. Write a SQL query that reports the device...

Game Play Analysis I Problem

LeetCode 511. Write an SQL query that reports the first...

Employee Bonus Problem

LeetCode 577. Select all employee’s name and bonus whose bonus...

Delete Duplicate Emails Problem

LeetCode 196. Write a SQL query to delete all duplicate...

Daily Leads And Partners Problem

LeetCode 1693. Write an SQL query that will, for each...


Customer Who Visited But Did Not Make Any Transactions Problem

LeetCode 1581. Write an SQL query to find the IDs...