Multiple choice technology databases What are the two types of SQL Functions? Single-row Functions and Double-row Functions One-row Functions and Two-row Functions Single-row Functions and Multiple-row Functions None of the above Reveal answer Fill a bubble to check yourself C Correct answer Explanation SQL functions are categorized into single-row functions (operate on one row at a time, like UPPER, SUBSTR) and multiple-row functions (operate on groups of rows, like SUM, COUNT, AVG). This classification determines how they're used in queries.