ETC/국비교육
-
-
-
-
-
국비 5일차 JOIN(catasian, equi, non-equi, self, outer), ANSI JOIN(cross, natural, using, on, left, right, full outer)
2021.01.11
-
-
국비 3일차, 함수(TRIM), 숫자함수(CEIL, FLOOR, ROUND, TRUNC, MOD, SIGN, CASE, DECODE), 날짜함수(SYSDATE, MONTHS_BETWEEN, ADD_MONTHS, NEXT_DAY,LAST_DAY), 변환함수(TO_NUM, TO_CHAR, TO_DATE)
2021.01.07
-
국비 2일차, [오라클] SQL WHERE(비교연산자 BETWEEN, IN, IS NULL, LIKE,논리 연산자), 정렬, 함수(INITCAP, LOWER, UPPER, CONCAT, LENGTH, INSTR, LPAD, RPAD, SUBSTR, REPLACE)
2021.01.06