DATE_TRUNC
Trunca una fecha en una unidad de tiempo determinada.
Sintaxis
DATE_TRUNC(unit, time)
Argumentos
| Nombre | Tipo | Descripción | Valor predeterminado |
|---|---|---|---|
| unit | cadena de caracteres | ||
| time | timestamp |
Devuelve
Una marca de tiempo timestamp
Ejemplos
| unit | hora | Resultado |
|---|---|---|
| "milisegundo" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-03 04:05:06.789" |
| "segundo" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-03 04:05:06" |
| "minuto" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-03 04:05:00" |
| "hora" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-03 04:00:00" |
| "día" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-03 00:00:00" |
| "semana" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-01 00:00:00" |
| "mes" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-02-01 00:00:00" |
| "trimestre" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-01-01 00:00:00" |
| "año" | timestamp "2021-02-03 04:05:06.789" | timestamp "2021-01-01 00:00:00" |
| "milisegundo" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-31 23:59:59.999" |
| "segundo" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-31 23:59:59" |
| "minuto" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-31 23:59:00" |
| "hora" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-31 23:00:00" |
| "día" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-31 00:00:00" |
| "semana" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-27 00:00:00" |
| "mes" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-12-01 00:00:00" |
| "trimestre" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-10-01 00:00:00" |
| "año" | timestamp "2021-12-31 23:59:59.999" | timestamp "2021-01-01 00:00:00" |
| "test" | timestamp "2021-12-31 23:59:59.999" | null |