Função MySQL YEARWEEK()

Retorne o ano e o número da semana para uma data:

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

Definição e uso

A função YEARWEEK() retorna o ano e o número da semana (um número de 0 a 53) para uma determinada data.

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:

Trabalha em:	Do MySQL 4.0

Retorne o ano e o número da semana para uma data:

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

Retorne o ano e o número da semana para a data atual do sistema:

SELECT YEARWEEK(CURDATE());