1. Which query correctly filters orders placed on a specific day '2023-05-15' (stripping times)?
- WHERE order_date::DATE = '2023-05-15'
- WHERE order_date = '2023-05-15'
- WHERE EXTRACT(day FROM order_date) = 15
- WHERE order_date IN ('2023-05-15')
Hint: Casting a TIMESTAMP to DATE using ::DATE strips the hours, minutes, and seconds, allowing a clean calendar comparison.