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Window Functions in PostgreSQL

Introduction
Quick refresher
PARTITION BY ORDER BY with ranking
PARTITION BY ORDER BY with window frames
PARTITION BY ORDER BY with analytical functions
Summary
21. Table repairs

Instruction

For the purpose of this short quiz, we'll use a new table: repairs.

Exercise

Select all the information from the repairs table.

Our repair workshop collects statistics for popular phones. Each row contains the phone name, the day, the number of free repairs performed (as part of warranty), the number of paid repairs performed on that day and the revenue generated by the paid repairs.