Sql, Data, Data Science, Data Analysis.
UNNEST(items) AS item FROM orders; Output: order_id | item ---------|------- 101 | Apple 101 | Banana 102 | Laptop 102 | Mouse 103 | Book 9. GENERATE_SERIES Function: Generate a series of numbers within a specified range. Example: SELECT generate_series(1, 5) AS numbers; Output: numbers -------- 1