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  1. SQL Cheat Sheet
  2. What I realized after solving 100 leetcode SQL questions
  3. LeetCode SQL Problem Solving Questions With Solutions
  4. HackerRank SQL Problem Solving Questions With Solutions
  5. SQL Interview Questions
  6. Data Engineer Interview Questions
  7. 10 SQL Queries You Should Know as a Data Engineer
  8. SQL JOIN Interview Questions

Database Questions​

  1. https://leetcode.com/problems/combine-two-tables/
  2. https://leetcode.com/problems/employees-earning-more-than-their-managers/
  3. https://leetcode.com/problems/duplicate-emails/
  4. https://leetcode.com/problems/customers-who-never-order/
  5. https://leetcode.com/problems/delete-duplicate-emails/
  6. https://leetcode.com/problems/rising-temperature/
  7. https://leetcode.com/problems/find-customer-referee/
  8. https://leetcode.com/problems/customer-placing-the-largest-number-of-orders/
  9. https://leetcode.com/problems/classes-more-than-5-students/
  10. https://leetcode.com/problems/big-countries/
  11. https://leetcode.com/problems/top-travellers/
  12. https://leetcode.com/problems/second-highest-salary/
  13. https://leetcode.com/problems/rank-scores/
  14. https://leetcode.com/problems/consecutive-numbers/
  15. https://platform.stratascratch.com/coding/10164-total-adwords-earnings
  16. https://platform.stratascratch.com/coding/2107-primary-key-violation
  17. https://platform.stratascratch.com/coding/10308-salaries-differences
  18. https://platform.stratascratch.com/coding/10172-best-selling-item
  19. https://platform.stratascratch.com/coding/2117-employee-with-most-orders
  20. https://platform.stratascratch.com/technical/2354-common-table-expression
  21. https://platform.stratascratch.com/technical/2084-delete-and-truncate
  22. https://platform.stratascratch.com/technical/2074-linked-list-and-array
  23. https://pgexercises.com/
  24. https://www.hackerrank.com/domains/sql
  25. https://www.hackerrank.com/domains/databases
Last updated on by sparsh