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SQL

Problems with tag SQL

273 found, showing 60 to 90

3

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Customers Who Never Order ->

Easy, #183, 1 solutions

Customers with Maximum Number of Transactions on Consecutive Days ->

Hard, #2752, 1 solutions

Customers Who Bought Products A and B but Not C ->

Medium, #1398, 1 solutions

Customers With Strictly Increasing Purchases ->

Hard, #2474, 1 solutions

Daily Leads and Partners ->

Easy, #1693, 1 solutions

Delete Duplicate Emails ->

Easy, #196, 1 solutions

Department Highest Salary ->

Medium, #184, 1 solutions

Department Top Three Salaries ->

Hard, #185, 1 solutions

Drop Type 1 Orders for Customers With Type 0 Orders ->

Medium, #2084, 1 solutions

Election Results ->

Medium, #2820, 2 solutions

Employee Bonus ->

Easy, #577, 1 solutions

Employee Task Duration and Concurrent Tasks ->

Hard, #3156, 1 solutions

Duplicate Emails ->

Easy, #182, 1 solutions

Employees Project Allocation ->

Hard, #3057, 1 solutions

Employees Whose Manager Left the Company ->

Easy, #1978, 1 solutions

Dynamic Pivoting of a Table ->

Hard, #2252, 1 solutions

Employees With Missing Information ->

Easy, #1965, 1 solutions

Dynamic Unpivoting of a Table ->

Hard, #2253, 1 solutions

Employees Earning More Than Their Managers ->

Easy, #181, 1 solutions

Employees With Deductions ->

Medium, #2394, 1 solutions

Find All Unique Email Domains ->

Easy, #3059, 1 solutions

Exchange Seats ->

Medium, #626, 1 solutions

Find Candidates for Data Scientist Position ->

Easy, #3051, 1 solutions

Evaluate Boolean Expression ->

Medium, #1440, 1 solutions

Find Customer Referee ->

Easy, #584, 1 solutions

Find Customers With Positive Revenue this Year ->

Easy, #1821, 1 solutions

Find Active Users ->

Medium, #2688, 1 solutions

Find Bursty Behavior ->

Medium, #3089, 1 solutions

Find Cumulative Salary of an Employee ->

Hard, #579, 1 solutions

Find Cutoff Score for Each School ->

Medium, #1988, 1 solutions