[Oracle] 숫자 내장 함수
1. ABS - 절대값SELECT ABS(35), ABS(-35) FROM DUAL; // 35, 35 2. SIGN - 양수/음수/0 확인SELECT SIGN(35), SIGN(-35), SIGN(0) FROM DUAL; // 1, -1, 0 3. ROUND - 반올림SELECT ROUND(34.35), ROUND(34.63) FROM DUAL; // 34, 35SELECT ROUND(34.352, 2), ROUND(34.637, 2) FROM DUAL; // 34.35, 34.64 4. TRUNC - 몫SELECT TRUNC(17/5) FROM DUAL; // 3 5. MOD - 나머지SELECT MOD(17,5) FROM DUAL; // 2 6. POWER - 제곱SELECT POWER(5,2) F..