마리아 db
SELECT DATE_ADD(STR_TO_DATE('2015-04-08','%Y-%m-%d'), INTERVAL seq HOUR) AS hh FROM seq_0_to_99
이것을 오라클로 바꾸면 어떻게 될까요?
이지포토
마리아 db
SELECT DATE_ADD(STR_TO_DATE('2015-04-08','%Y-%m-%d'), INTERVAL seq HOUR) AS hh FROM seq_0_to_99
이것을 오라클로 바꾸면 어떻게 될까요?
ÀÌ·± ´À³¦Àϱî¿ä? ^^
SELECT
TO_CHAR(TO_DATE('2015-04-08', 'YYYY-MM-DD')+ROWNUM/24, 'HH') AS HH -- ´Ü¼ø ½Ã°£À» HH·Î »Ì°í ½Í¾îÇÏ½Ã´Â°Í °°¾Æ¼...
FROM DUAL
CONNECT BY LEVEL <= 100;
À̰Űڳ׿ä...
CONNECT BY LEVEL <= 100
ÀÌ°Ô ¿Ö ¾ÈµÇ´ÂÁö Áú¹®µå·Áµµ µÉ±î¿ä?
SELECT
ROWNUM AS RN
, SYSDATE+(ROWNUM-1)/24 AS VAL1 -- ½Ã°£´ÜÀ§·Î Áõ°¡½ÃÅ°±â
, SYSDATE+(ROWNUM-1) AS VAL2 -- ÇöÀ糯¥ Æ÷ÇÔ ÇϷ羿 Áõ°¡½ÃÅ°±â
, ADD_MONTHS(SYSDATE, (ROWNUM-1)) AS VAL3 -- ÇÑ´Þ¾¿ Áõ°¡½ÃÅ°±â
, ADD_MONTHS(SYSDATE, (ROWNUM-1)/5) AS VAL4 -- 5°³ÀÇ ROW´Â Ç×»ó °°°í, ±× ´ÙÀ½ 5°³ ROW´Â +1MONTHÇϱâ
FROM DUAL
CONNECT BY LEVEL <= 100
;
´ëÃæ ÀÌ·± ´À³¦ÀÌ·Á³ª¿ä?
2015-04-08 01:00:00
2015-04-08 02:00:00
2015-04-08 03:00:00
2015-04-08 04:00:00
ÀÌ·±·Î¿ì¸¦ »Ì±â¸¸ ÇϸéµË´Ï´Ù.
ROWNUM AS RN
, to_date(SYSDATE+(ROWNUM-1)/24 ,'YYYY-MM-DD HH24:MI:SS') AS VAL1 -- ½Ã°£´ÜÀ§·Î Áõ°¡½ÃÅ°±â
FROM DUAL
CONNECT BY LEVEL <= 100
ÀÌ·¸°ÔÇصµ ½Ã°£Àº ¾È³ª¿À³×¿ä.Áß¿äÇÑ°ÍÀº data type À¸·Î ½Ã°£ÀÌ ³ª¿Í¾ßÇϴµ¥¿ä.
SELECT
ROWNUM AS RN
, TRUNC(SYSDATE)+(ROWNUM-1)/24 AS VAL1 -- ½Ã°£´ÜÀ§·Î Áõ°¡½ÃÅ°±â (DATE TYPE)
, TO_CHAR(TRUNC(SYSDATE)+(ROWNUM-1)/24, 'YYYY-MM-DD HH24:MI:SS') AS VAL2 -- ½Ã°£´ÜÀ§·Î Áõ°¡½ÃÅ°±â (CHAR TYPE)
FROM DUAL
CONNECT BY LEVEL <= 100
;
ÀÌ·¸°Ô ÇÏ¸é ¾Æ·¡¿Í °°Àº °á°ú°ªÀÌ ³ª¿É´Ï´Ù.
RN VAL1 VAL2
1 2019/07/25 00:00:00 2019-07-25 00:00:00
2 2019/07/25 01:00:00 2019-07-25 01:00:00
3 2019/07/25 02:00:00 2019-07-25 02:00:00
4 2019/07/25 03:00:00 2019-07-25 03:00:00
5 2019/07/25 04:00:00 2019-07-25 04:00:00
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
96 2019/07/28 23:00:00 2019-07-28 23:00:00
97 2019/07/29 00:00:00 2019-07-29 00:00:00
98 2019/07/29 01:00:00 2019-07-29 01:00:00
99 2019/07/29 02:00:00 2019-07-29 02:00:00
100 2019/07/29 03:00:00 2019-07-29 03:00:00