DB - (MSSQL) 날짜 변환처리 방법

Datetime을 상황에 따라 날짜형식을 변환시키는 방법은 여러가지가 있으며 다음 표에 따라 적절히 사용할 수 있습니다

 

주로 사용하는 형식은 21, 23, 112, 121이며 사용법은 다음과 같습니다.

 

 

 

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select getdate()
-- 2021-07-14 15:54:13.967

select convert(char(23), getdate(), 21)
-- 2021-07-14 15:52:17.763

select convert(char(10), getdate(), 23)
-- 2021-07-14

select convert(char(8), getdate(), 112)
-- 20210714

select convert(char(23), getdate(), 121)
-- 2021-07-14 15:52:17.763

 

 

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순번	쿼리	결과	날짜 코드
0	CONVERT(CHAR(19), DATETIME, 0)	01 02 2000 1:14PM	MM DD YYYY H:MM
1	CONVERT(CHAR(10), DATETIME, 1)	01/02/2000	MM/DD/YYYY
2	CONVERT(CHAR(8), DATETIME, 2)	00.01.02	YY.MM.DD
3	CONVERT(CHAR(8), DATETIME, 3)	02/01/00	DD/MM/YY
4	CONVERT(CHAR(8), DATETIME, 4)	02.01.00	DD.MM.YY
5	CONVERT(CHAR(8), DATETIME, 5)	02-01-00	DD-MM-YY
6	CONVERT(CHAR(8), DATETIME, 6)	02 01 00	DD MM YY
7	CONVERT(CHAR(9), DATETIME, 7)	01 02, 00	MM DD, YY
8	CONVERT(CHAR(8), DATETIME, 8)	13:14:15	HH:MM:SS
9	CONVERT(CHAR(26), DATETIME, 9)	01 02 2000 1:14:15.678PM	NN DD YYYY H:MM:SS.MS
10	CONVERT(CHAR(8), DATETIME, 10)	01-02-00	MM-DD-YY
11	CONVERT(CHAR(8), DATETIME, 11)	02/01/00	DD/MM/YY
12	CONVERT(CHAR(6), DATETIME, 12)	000102	YYMMDD
13	CONVERT(CHAR(24), DATETIME, 13)	02 01 2000 13:14:15.678	DD MM YYYY HH:MM:SS.MS
14	CONVERT(CHAR(12), DATETIME, 14)	13:14:15.678	HH:MM:SS.MS
20	CONVERT(CHAR(19), DATETIME, 20)	2000-01-02 13:14:15	YYYY-MM-DD HH:MM:SS
21	CONVERT(CHAR(23), DATETIME, 21)	2000-01-02 13:14:15.678	YYYY-MM-DD HH:MM:SS.MS
22	CONVERT(CHAR(20), DATETIME, 22)	01/02/00 1:14:15 PM	MM/DD/YY H:M:S
23	CONVERT(CHAR(10), DATETIME, 23)	2000-01-02	YYYY-MM-DD
24	CONVERT(CHAR(8), DATETIME, 24)	13:14:15	HH:MM:SS
25	CONVERT(CHAR(23), DATETIME, 25)	2000-01-02 13:14:15.678	YYYY-MM-DD HH:MM:SS.MS
100	CONVERT(CHAR(19), DATETIME, 100)	01 02 2000 1:02PM	MM DD YYYY H:MM
101	CONVERT(CHAR(10), DATETIME, 101)	01/02/2000	MM/DD/YYYY
102	CONVERT(CHAR(10), DATETIME, 102)	2000.01.02	YYYY.MM.DD
103	CONVERT(CHAR(10), DATETIME, 103)	02/01/2000	DD/MM/YYYY
104	CONVERT(CHAR(10), DATETIME, 104)	02/01/2000	DD/MM/YYYY
105	CONVERT(CHAR(10), DATETIME, 105)	02-01-2000	DD-MM-YYYY
106	CONVERT(CHAR(11), DATETIME, 106)	02 01 2000	DD MM YYYY
107	CONVERT(CHAR(12), DATETIME, 107)	01 02, 2000	MM DD, YYYY
108	CONVERT(CHAR(8), DATETIME, 108)	13:14:15	HH:MM:SS
109	CONVERT(CHAR(26), DATETIME, 109)	01 02 2000 1:14:15.678PM	MM DD YYYY H:MM:DD.MS
110	CONVERT(CHAR(10), DATETIME, 110)	01-02-2000	MM-DD-YYYY
111	CONVERT(CHAR(10), DATETIME, 111)	2000/01/02	YYYY/MM/DD
112	CONVERT(CHAR(8), DATETIME, 112)	20000102	YYYYMMDD
113	CONVERT(CHAR(24), DATETIME, 113)	02 01 2000 13:14:15.678	DD MM YYYY HH:MM:DD.MS
114	CONVERT(CHAR(12), DATETIME, 114)	13:14:15:678	HH:MM:DD:MS
120	CONVERT(CHAR(19), DATETIME, 120)	2000-01-02 13:14:15	YYYY-MM-DD HH:MM:SS
121	CONVERT(CHAR(23), DATETIME, 121)	2000-01-02 13:14:15.678	YYYY-MM-DD HH:MM:SS.MS
126	CONVERT(CHAR(23), DATETIME, 126)	2000-01-02T13:14:15.678	YYYY-MM-DDT HH:MM:SS.MS
127	CONVERT(CHAR(23), DATETIME, 127)	2000-01-02T13:14:15.678	YYYY-MM-DDT HH:MM:SS.MS
131	CONVERT(CHAR(25), DATETIME, 131)	1/06/1421 1:13:14:678PM