SQL · Aggregates

SQL Aggregates puzzles

7 SQL puzzles on aggregates. Read the snippet, guess the output, then reveal the answer and why SQL behaves that way.

• #502026-07-26
• #342026-07-10
• #332026-07-09
• #262026-07-02
• #102026-06-16
• #92026-06-15
• #22026-06-08