Câu 30: C2090-610: DB2 10.1 Fundamentals

An SQL function designed to convert temperatures from Fahrenheit to Celsius was created as follows: How can this function be used to convert average temperature (AVG_TEMP) data stored in a table called CLIMATE_INFO?

1. A. CALL conv_temp(climate_info.avg_temp);
2. B. CALL convert_ftoc(climate_info.avg_temp);
3. C. SELECT conv_temp(avg_temp) FROM climate_info; — đáp án hiện tại
4. D. SELECT convert_ftoc(avg_temp) FROM climate_info;