📊 SQL 50 – LeetCode Challenge

Welcome to my SQL 50 repository! 🚀
This repo contains my solutions to the LeetCode SQL 50 challenge — a curated set of problems designed to strengthen SQL skills for data analysis, backend development, and database management.

🎯 Goal

The objective of this journey is to:

✅ Master SQL fundamentals and advanced queries
✅ Learn to write clean and optimized SQL code
✅ Get hands-on practice with real-world database scenarios
✅ Earn the LeetCode SQL 50 badge 🏅

Name		Name	Last commit message	Last commit date
Latest commit History 13 Commits
.gitattributes		.gitattributes
ArticleViews1.sql		ArticleViews1.sql
AverageSellingPrice.sql		AverageSellingPrice.sql
AverageTimeofProcess_perMachine.sql		AverageTimeofProcess_perMachine.sql
BigCountries.sql		BigCountries.sql
BiggestSingleNumber.sql		BiggestSingleNumber.sql
ClasseswithAtleast5Students.sql		ClasseswithAtleast5Students.sql
ConfirmationRate.sql		ConfirmationRate.sql
ConsecutiveNumbers.sql		ConsecutiveNumbers.sql
CountSalaryCategories.sql		CountSalaryCategories.sql
CustomerNoTransaction.sql		CustomerNoTransaction.sql
CustomerwhoBoughtAllProducts.sql		CustomerwhoBoughtAllProducts.sql
DeleteDuplicateEmails.sql		DeleteDuplicateEmails.sql
DepartmentTopThreeSalaries.sql		DepartmentTopThreeSalaries.sql
EmployeeWhoseManagerLeftCompany.sql		EmployeeWhoseManagerLeftCompany.sql
Employee_Bonus.sql		Employee_Bonus.sql
ExchangeSeats.sql		ExchangeSeats.sql
FindFollowersCount.sql		FindFollowersCount.sql
FindUserwithValidEmails.sql		FindUserwithValidEmails.sql
FindcustomerReferee.sql		FindcustomerReferee.sql
FixNamesInTable.sql		FixNamesInTable.sql
FriendRequestIIWhohasthemostFriends.sql		FriendRequestIIWhohasthemostFriends.sql
GamePlayAnalysisIV.sql		GamePlayAnalysisIV.sql
GroupSoldProductsByTheDate.sql		GroupSoldProductsByTheDate.sql
ImmediateFoodDelivery.sql		ImmediateFoodDelivery.sql
InvalidTweets.sql		InvalidTweets.sql
Investmentin2016.sql		Investmentin2016.sql
LastPersonToFitInBus.sql		LastPersonToFitInBus.sql
Liststheproductordersinaperiod.sql		Liststheproductordersinaperiod.sql
Managerwithatleast5directreports.sql		Managerwithatleast5directreports.sql
MonthlyTransaction1.sql		MonthlyTransaction1.sql
MovieRating.sql		MovieRating.sql
NotBoringMovies.sql		NotBoringMovies.sql
NumberofEmployeewichReportToEachEmployee.sql		NumberofEmployeewichReportToEachEmployee.sql
NumberofUniqueSubjectTaughtByEachTeacher.sql		NumberofUniqueSubjectTaughtByEachTeacher.sql
PateintwithACondition.sql		PateintwithACondition.sql
PercentageOfUserAttendedaContest.sql		PercentageOfUserAttendedaContest.sql
PrimaryDepartmentForEachEmployee.sql		PrimaryDepartmentForEachEmployee.sql
ProductPriceAtGivenData.sql		ProductPriceAtGivenData.sql
ProductSalesAnalysis1.sql		ProductSalesAnalysis1.sql
ProductSalesAnalysisIII.sql		ProductSalesAnalysisIII.sql
ProjectEmployeesI.sql		ProjectEmployeesI.sql
Queries_Quality&Percentage.sql		Queries_Quality&Percentage.sql
README.md		README.md
RecyclableandLowFatProducts.sql		RecyclableandLowFatProducts.sql
ReplaceEmployeeIdwithuniqueIdentifier.sql		ReplaceEmployeeIdwithuniqueIdentifier.sql
RestaurantGrowth.sql		RestaurantGrowth.sql
RisingTemperature.sql		RisingTemperature.sql
SecondHighestSalary.sql		SecondHighestSalary.sql
Students&Examinations.sql		Students&Examinations.sql
TriangleJudgement.sql		TriangleJudgement.sql
UserActivityForPast30DaysI.sql		UserActivityForPast30DaysI.sql

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📊 SQL 50 – LeetCode Challenge

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