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Příklady formátování „datetimeoffset“ v SQL Server pomocí standardních formátovacích řetězců (T-SQL)

Myslel jsem, že by bylo zajímavé spustit několik rychlých dotazů, abych zjistil, jak různé formátovací řetězce ovlivňují formátování hodnot data/času.

Příklad 1 – Invariantní kultura

DECLARE @date datetimeoffset, @culture char(2); 
SET @date = '2030-05-25 23:59:30.1234567 +07:00';
SET @culture = 'iv';
SELECT 
  FORMAT(@date, 'd', @culture) AS 'd',
  FORMAT(@date, 'D', @culture) AS 'D',
  FORMAT(@date, 'f', @culture) AS 'f',
  FORMAT(@date, 'F', @culture) AS 'F',
  FORMAT(@date, 'g', @culture) AS 'g',
  FORMAT(@date, 'G', @culture) AS 'G',
  FORMAT(@date, 'm', @culture) AS 'm',
  FORMAT(@date, 'M', @culture) AS 'M',
  FORMAT(@date, 'o', @culture) AS 'o',
  FORMAT(@date, 'O', @culture) AS 'O',
  FORMAT(@date, 'r', @culture) AS 'r',
  FORMAT(@date, 'R', @culture) AS 'R',
  FORMAT(@date, 's', @culture) AS 's',
  FORMAT(@date, 't', @culture) AS 't',
  FORMAT(@date, 'T', @culture) AS 'T',
  FORMAT(@date, 'u', @culture) AS 'u',
  FORMAT(@date, 'U', @culture) AS 'U',
  FORMAT(@date, 'y', @culture) AS 'y',
  FORMAT(@date, 'Y', @culture) AS 'Y';

Výsledek (při použití vertikálního výstupu):

d | 05/25/2030
D | Saturday, 25 May 2030
f | Saturday, 25 May 2030 23:59
F | Saturday, 25 May 2030 23:59:30
g | 05/25/2030 23:59
G | 05/25/2030 23:59:30
m | May 25
M | May 25
o | 2030-05-25T23:59:30.1234567+07:00
O | 2030-05-25T23:59:30.1234567+07:00
r | Sat, 25 May 2030 16:59:30 GMT
R | Sat, 25 May 2030 16:59:30 GMT
s | 2030-05-25T23:59:30
t | 23:59
T | 23:59:30
u | 2030-05-25 16:59:30Z
U | NULL
y | 2030 May
Y | 2030 May

Příklad 2 – americká angličtina

DECLARE @date datetimeoffset, @culture char(5);
SET @date = '2030-05-25 23:59:30.1234567 +07:00';
SET @culture = 'en-us';
SELECT 
  FORMAT(@date, 'd', @culture) AS 'd',
  FORMAT(@date, 'D', @culture) AS 'D',
  FORMAT(@date, 'f', @culture) AS 'f',
  FORMAT(@date, 'F', @culture) AS 'F',
  FORMAT(@date, 'g', @culture) AS 'g',
  FORMAT(@date, 'G', @culture) AS 'G',
  FORMAT(@date, 'm', @culture) AS 'm',
  FORMAT(@date, 'M', @culture) AS 'M',
  FORMAT(@date, 'o', @culture) AS 'o',
  FORMAT(@date, 'O', @culture) AS 'O',
  FORMAT(@date, 'r', @culture) AS 'r',
  FORMAT(@date, 'R', @culture) AS 'R',
  FORMAT(@date, 's', @culture) AS 's',
  FORMAT(@date, 't', @culture) AS 't',
  FORMAT(@date, 'T', @culture) AS 'T',
  FORMAT(@date, 'u', @culture) AS 'u',
  FORMAT(@date, 'U', @culture) AS 'U',
  FORMAT(@date, 'y', @culture) AS 'y',
  FORMAT(@date, 'Y', @culture) AS 'Y';

Výsledek (při použití vertikálního výstupu):

d | 5/25/2030
D | Saturday, May 25, 2030
f | Saturday, May 25, 2030 11:59 PM
F | Saturday, May 25, 2030 11:59:30 PM
g | 5/25/2030 11:59 PM
G | 5/25/2030 11:59:30 PM
m | May 25
M | May 25
o | 2030-05-25T23:59:30.1234567+07:00
O | 2030-05-25T23:59:30.1234567+07:00
r | Sat, 25 May 2030 16:59:30 GMT
R | Sat, 25 May 2030 16:59:30 GMT
s | 2030-05-25T23:59:30
t | 11:59 PM
T | 11:59:30 PM
u | 2030-05-25 16:59:30Z
U | NULL
y | May 2030
Y | May 2030

Příklad 3 – Britové

DECLARE @date datetimeoffset, @culture char(5);
SET @date = '2030-05-25 23:59:30.1234567 +07:00';
SET @culture = 'en-gb';
SELECT 
  FORMAT(@date, 'd', @culture) AS 'd',
  FORMAT(@date, 'D', @culture) AS 'D',
  FORMAT(@date, 'f', @culture) AS 'f',
  FORMAT(@date, 'F', @culture) AS 'F',
  FORMAT(@date, 'g', @culture) AS 'g',
  FORMAT(@date, 'G', @culture) AS 'G',
  FORMAT(@date, 'm', @culture) AS 'm',
  FORMAT(@date, 'M', @culture) AS 'M',
  FORMAT(@date, 'o', @culture) AS 'o',
  FORMAT(@date, 'O', @culture) AS 'O',
  FORMAT(@date, 'r', @culture) AS 'r',
  FORMAT(@date, 'R', @culture) AS 'R',
  FORMAT(@date, 's', @culture) AS 's',
  FORMAT(@date, 't', @culture) AS 't',
  FORMAT(@date, 'T', @culture) AS 'T',
  FORMAT(@date, 'u', @culture) AS 'u',
  FORMAT(@date, 'U', @culture) AS 'U',
  FORMAT(@date, 'y', @culture) AS 'y',
  FORMAT(@date, 'Y', @culture) AS 'Y';

Výsledek (při použití vertikálního výstupu):

d | 25/05/2030
D | 25 May 2030
f | 25 May 2030 23:59
F | 25 May 2030 23:59:30
g | 25/05/2030 23:59
G | 25/05/2030 23:59:30
m | 25 May
M | 25 May
o | 2030-05-25T23:59:30.1234567+07:00
O | 2030-05-25T23:59:30.1234567+07:00
r | Sat, 25 May 2030 16:59:30 GMT
R | Sat, 25 May 2030 16:59:30 GMT
s | 2030-05-25T23:59:30
t | 23:59
T | 23:59:30
u | 2030-05-25 16:59:30Z
U | NULL
y | May 2030
Y | May 2030

Příklad 4 – němčina

DECLARE @date datetimeoffset, @culture char(2);
SET @date = '2030-05-25 23:59:30.1234567 +07:00';
SET @culture = 'de';
SELECT 
  FORMAT(@date, 'd', @culture) AS 'd',
  FORMAT(@date, 'D', @culture) AS 'D',
  FORMAT(@date, 'f', @culture) AS 'f',
  FORMAT(@date, 'F', @culture) AS 'F',
  FORMAT(@date, 'g', @culture) AS 'g',
  FORMAT(@date, 'G', @culture) AS 'G',
  FORMAT(@date, 'm', @culture) AS 'm',
  FORMAT(@date, 'M', @culture) AS 'M',
  FORMAT(@date, 'o', @culture) AS 'o',
  FORMAT(@date, 'O', @culture) AS 'O',
  FORMAT(@date, 'r', @culture) AS 'r',
  FORMAT(@date, 'R', @culture) AS 'R',
  FORMAT(@date, 's', @culture) AS 's',
  FORMAT(@date, 't', @culture) AS 't',
  FORMAT(@date, 'T', @culture) AS 'T',
  FORMAT(@date, 'u', @culture) AS 'u',
  FORMAT(@date, 'U', @culture) AS 'U',
  FORMAT(@date, 'y', @culture) AS 'y',
  FORMAT(@date, 'Y', @culture) AS 'Y';

Výsledek (při použití vertikálního výstupu):

d | 25.05.2030
D | Samstag, 25. Mai 2030
f | Samstag, 25. Mai 2030 23:59
F | Samstag, 25. Mai 2030 23:59:30
g | 25.05.2030 23:59
G | 25.05.2030 23:59:30
m | 25. Mai
M | 25. Mai
o | 2030-05-25T23:59:30.1234567+07:00
O | 2030-05-25T23:59:30.1234567+07:00
r | Sat, 25 May 2030 16:59:30 GMT
R | Sat, 25 May 2030 16:59:30 GMT
s | 2030-05-25T23:59:30
t | 23:59
T | 23:59:30
u | 2030-05-25 16:59:30Z
U | NULL
y | Mai 2030
Y | Mai 2030

Následující tabulka obsahuje popis každého formátovacího řetězce.

DECLARE @thedatetimeoffset datetimeoffset = '2030-05-25 23:59:30.1234567 +12:15';

SELECT 
  FORMAT(@thedatetimeoffset, 'd') AS 'd (Short date)',
  FORMAT(@thedatetimeoffset, 'D') AS 'D (Long date)',
  FORMAT(@thedatetimeoffset, 'f') AS 'f (Full date/time - short time)',
  FORMAT(@thedatetimeoffset, 'F') AS 'F (Full date/time - long time)',
  FORMAT(@thedatetimeoffset, 'g') AS 'g (General date/time - short time)',
  FORMAT(@thedatetimeoffset, 'G') AS 'G (General date/time - long time)',
  FORMAT(@thedatetimeoffset, 'm') AS 'm (Month/day)',
  FORMAT(@thedatetimeoffset, 'M') AS 'M (Month/day)',
  FORMAT(@thedatetimeoffset, 'o') AS 'o (Round-trip date/time)',
  FORMAT(@thedatetimeoffset, 'O') AS 'O (Round-trip date/time)',
  FORMAT(@thedatetimeoffset, 'r') AS 'r (RFC1123)',
  FORMAT(@thedatetimeoffset, 'R') AS 'R (RFC1123)',
  FORMAT(@thedatetimeoffset, 's') AS 's (Sortable date/time)',
  FORMAT(@thedatetimeoffset, 't') AS 't (Short time)',
  FORMAT(@thedatetimeoffset, 'T') AS 'T (Long time)',
  FORMAT(@thedatetimeoffset, 'u') AS 'u (Universal sortable date/time)',
  FORMAT(@thedatetimeoffset, 'U') AS 'U (Universal full date/time)',
  FORMAT(@thedatetimeoffset, 'y') AS 'y (Year/month)',
  FORMAT(@thedatetimeoffset, 'Y') AS 'Y (Year/month)';

Výsledek:

d (Short date)                     | 5/25/2030
D (Long date)                      | Saturday, May 25, 2030
f (Full date/time - short time)    | Saturday, May 25, 2030 11:59 PM
F (Full date/time - long time)     | Saturday, May 25, 2030 11:59:30 PM
g (General date/time - short time) | 5/25/2030 11:59 PM
G (General date/time - long time)  | 5/25/2030 11:59:30 PM
m (Month/day)                      | May 25
M (Month/day)                      | May 25
o (Round-trip date/time)           | 2030-05-25T23:59:30.1234567+12:15
O (Round-trip date/time)           | 2030-05-25T23:59:30.1234567+12:15
r (RFC1123)                        | Sat, 25 May 2030 11:44:30 GMT
R (RFC1123)                        | Sat, 25 May 2030 11:44:30 GMT
s (Sortable date/time)             | 2030-05-25T23:59:30
t (Short time)                     | 11:59 PM
T (Long time)                      | 11:59:30 PM
u (Universal sortable date/time)   | 2030-05-25 11:44:30Z
U (Universal full date/time)       | NULL
y (Year/month)                     | May 2030
Y (Year/month)                     | May 2030

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