문제
Query the total population of all cities in CITY where District is California.
정답
SELECT SUM(POPULATION)
FROM CITY
WHERE DISTRICT = "California";
멋있는 어른이 되고싶은 정만이의 벨로그
Query the total population of all cities in CITY where District is California.
SELECT SUM(POPULATION)
FROM CITY
WHERE DISTRICT = "California";