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Problem Solving



Solving practical problems with the SQLs we have learned so far.


1. MySQL Northwind Queries - Part 1


2. MySQL Northwind Queries - Part 2


3. MySQL Northwind Queries - Part 3


4. How to Work with Two Unrelated Values


5. How to Fill Gaps in Sales Data


6. How to Calculate Totals, Subtotals and Grand Total


7. How to Work with NULL Values


8. How to fill down empty cells with values from a previous non-empty row


9. Use RANK function to update a previous record within a group or partition


10. Two ways to add a unique number or ID to each row


11. 3 ways to get Top N rows from MySQL


12. How to generate Cumulative Sum (running total) by MySQL - Part 1


13. How to generate Cumulative Sum (running total) by MySQL - Part 2


Back to Tutorial Index: MySQL Database How-to Articles and Tutorials

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