Crear fechas a partir de partes
Análisis de series temporales en SQL Server
Maham Faisal Khan
Senior Data Science Content Developer
Fechas a partir de partes
DATEFROMPARTS(year, month, day)
TIMEFROMPARTS(hour, minute, second, fraction, precision)
DATETIMEFROMPARTS(year, month, day, hour, minute, second, ms)
DATETIME2FROMPARTS(year, month, day, hour, minute, second, fraction, precision)
SMALLDATETIMEFROMPARTS(year, month, day, hour, minute)
DATETIMEOFFSETFROMPARTS(year, month, day, hour, minute, second, fraction, hour_offset, minute_offset, precision)
Fechas y horas juntas
SELECT
DATETIMEFROMPARTS(1918, 11, 11, 05, 45, 17, 995) AS DT,
DATETIME2FROMPARTS(1918, 11, 11, 05, 45, 17, 0, 0) AS DT20,
DATETIME2FROMPARTS(1918, 11, 11, 05, 45, 17, 995, 3) AS DT23,
DATETIME2FROMPARTS(1918, 11, 11, 05, 45, 17, 9951234, 7) AS DT27;
| DT | DT20 | DT23 | DT27 |
|---|---|---|---|
| 1918-11-11 05:45:17.997 | 1918-11-11 05:45:17 | 1918-11-11 05:45:17.995 | 1918-11-11 05:45:17.9951234 |
Trabajar con desfases
SELECT
DATETIMEOFFSETFROMPARTS(2009, 08, 14, 21,
00, 00, 0, 5, 30, 0) AS IST,
DATETIMEOFFSETFROMPARTS(2009, 08, 14, 21,
00, 00, 0, 5, 30, 0)
AT TIME ZONE 'UTC' AS UTC;
| IST | UTC |
|---|---|
| 2009-08-14 21:00:00 +05:30 | 2009-08-14 15:30:00 +00:00 |
Cosas a tener en cuenta al usar partes
DATEFROMPARTS(1999, 12, NULL)
DATEFROMPARTS(10000, 01, 01)
DATETIME2FROMPARTS(1918, 11, 11, 05, 45, 17, 995, 0)
NULL
No se puede construir el tipo de datos date; algunos argumentos tienen valores no válidos.
No se puede construir el tipo de datos datetime2; algunos argumentos tienen valores no válidos.
¡Vamos a practicar!
Análisis de series temporales en SQL Server
