MySQL YEARWEEK() Funzione

Restituisci il numero dell'anno e della settimana per una data:

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

Definizione e utilizzo

La funzione SETTIMANA ANNO() restituisce l'anno e il numero della settimana (un numero compreso tra 0 e 53) per una determinata 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:

Funziona in:	Da MySQL 4.0

Restituisci il numero dell'anno e della settimana per una data:

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

Restituisce il numero dell'anno e della settimana per la data di sistema corrente:

SELECT YEARWEEK(CURDATE());