MySQL AÑO SEMANA() Función

Devuelve el año y el número de semana para una fecha:

SELECT YEARWEEK("2017-06-15");

Definición y uso

La función YEARWEEK() devuelve el año y el número de semana (un número del 0 al 53) para una fecha dada.

YEARWEEK(date, firstdayofweek)

Parameter	Description
date	Required. The date or datetime value to extract the year and week number from
firstdayofweek	Optional. Specifies what day the week starts on. Can be one of the following: 0 - First day of week is Sunday 1 - First day of week is Monday and the first week has more than 3 days 2 - First day of week is Sunday 3 - First day of week is Monday and the first week has more than 3 days 4 - First day of week is Sunday and the first week has more than 3 days 5 - First day of week is Monday 6 - First day of week is Sunday and the first week has more than 3 days 7 - First day of week is Monday

Parameter

Description

date

Required. The date or datetime value to extract the year and week number from

firstdayofweek

Optional. Specifies what day the week starts on. Can be one of the following:

Trabaja en:	Desde MySQL 4.0

Devuelve el año y el número de semana para una fecha:

SELECT YEARWEEK("2017-10-25");

Devuelve el año y el número de semana para la fecha actual del sistema:

SELECT YEARWEEK(CURDATE());