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Solve → 164Combine Two TablesEasyDatabase
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Solve → 170Rising TemperatureEasyDatabase
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Solve → 178Customer Who Visited but Did Not Make Any TransactionsEasyDatabase
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Solve → 185Immediate Food Delivery IIMediumDatabase
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Solve → 187Product Sales Analysis IEasyDatabase
Solve → 188Customers Who Never OrderEasyDatabase
Solve → 189Actors and Directors Who Cooperated At Least Three TimesEasyDatabase
Solve → 190Sales Analysis IIIEasyDatabase
Solve → 191List the Products Ordered in a PeriodEasyDatabase
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Solve → 193Exchange SeatsMediumDatabase
Solve → 194Product Price at a Given DateMediumDatabase
Solve → 195Reformat Department TableEasyDatabase
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Solve → 198Triangle JudgementEasyDatabase
Solve → 200Sales by Day of the WeekHardDatabase
Solve → 201Customer Order FrequencyEasyDatabase
Solve → 202Warehouse ManagerEasyDatabase
Solve → 203The Number of Employees Which Report to Each EmployeeEasyDatabase
Solve → 204Customers With Strictly Increasing PurchasesHardDatabase
Solve → 205Delete Duplicate EmailsEasyDatabase
Solve → 206Find Cumulative Salary of an EmployeeHardDatabase
Solve → 207Product Sales Analysis IIEasyDatabase
Solve → 208Sales Analysis IEasyDatabase
Solve → 209Sales Analysis IIEasyDatabase
Solve → 210User Activity for the Past 30 Days IEasyDatabase
Solve → 211Find the Team SizeEasyDatabase
Solve → 212Restaurant GrowthMediumDatabase
Solve → 213Students With Invalid DepartmentsEasyDatabase
Solve → 214Friendly Movies Streamed Last MonthEasyDatabase
Solve → 215Find the Missing IDsMediumDatabase
Solve → 216All Valid Triplets That Can Represent a CountryEasyDatabase
Solve → 217Invalid TweetsEasyDatabase
Solve → 218Number of Calls Between Two PersonsMediumDatabase
Solve → 219Find Total Time Spent by Each EmployeeEasyDatabase
Solve → 220Product's Price for Each StoreEasyDatabase
Solve → 221Grand Slam TitlesMediumDatabase
Solve → 222Rearrange Products TableEasyDatabase
Solve → 223Ad-Free SessionsEasyDatabase
Solve → 224Find Interview CandidatesMediumDatabase
Solve → 225Longest Winning StreakHardDatabase
Solve → 226Users With Two Purchases Within Seven DaysMediumDatabase
Solve → 227Number of Times a Driver Was a PassengerMediumDatabase
Solve → 228Products With Three or More Orders in Two Consecutive YearsMediumDatabase
Solve → 229Product Sales Analysis VEasyDatabase
Solve → 230Employees With DeductionsMediumDatabase
Solve → 231Percentage of Users Attended a ContestEasyDatabase
Solve → 232Game Play Analysis IVMediumDatabase
Solve → 233Queries Quality and PercentageEasyDatabase
Solve → 234Trips and UsersHardDatabase
Solve → 235Human Traffic of StadiumHardDatabase
Solve → 236Movie RatingMediumDatabase
Solve → 237Fix Names in a TableEasyDatabase
Solve → 238Investments in 2016MediumDatabase
Solve → 239Not Boring MoviesEasyDatabase
Solve → 240Number of Unique Subjects Taught by Each TeacherEasyDatabase
Solve → 241Primary Department for Each EmployeeEasyDatabase
Solve → 242Friend Requests II: Who Has the Most FriendsMediumDatabase
Solve → 243Project Employees IEasyDatabase
Solve → 244Game Play Analysis IEasyDatabase
Solve → 245Last Person to Fit in the BusMediumDatabase
Solve → 246Biggest Single NumberEasyDatabase
Solve → 247The Most Frequently Ordered Products for Each CustomerMediumDatabase
Solve → 248Find Users With Valid E-MailsEasyDatabase
Solve → 249Swap Sex of EmployeesEasyDatabase
Solve → 250Market Analysis IMediumDatabase
Solve → 251Daily Leads and PartnersEasyDatabase
Solve → 252Report Contiguous DatesHardDatabase
Solve → 253Group Sold Products By The DateEasyDatabase
Solve → 254Patients With a ConditionEasyDatabase
Solve → 255Analyze Organization HierarchyHardDatabase
Solve → 256Count Salary CategoriesMediumDatabase
Solve → 257Find Followers CountEasyDatabase
Solve → 258Customer Placing the Largest Number of OrdersEasyDatabase
Solve → 260The Most Recent Orders for Each ProductMediumDatabase
Solve → 261All People Report to the Given ManagerMediumDatabase
Solve → 262Customer Purchasing Behavior AnalysisMediumDatabase
Solve → 263Pizza Toppings Cost AnalysisMediumDatabase
Solve → 264Year on Year Growth RateHardDatabase
Solve → 265Game Play Analysis IIEasyDatabase
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Solve → 267Median Employee SalaryHardDatabase
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Solve →