with temp 연습 시 참고

원문 : https://lilymate.tistory.com/479
WITH TB_MAIN AS (

SELECT LEVEL AS LV_NO
FROM   DUAL
CONNECT BY LEVEL <= 3

)
, TB_SUB AS (

SELECT a.*
        , SYSDATE + LV_NO AS SYSDATE_PLUS_LV_NO
FROM   TB_MAIN a

)

SELECT *
FROM TB_SUB
;

출처: https://lilymate.tistory.com/479 [행이네]