MySQL YEARWEEK() Funksie

Gee die jaar- en weeknommer terug vir 'n datum:

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

Definisie en gebruik

Die YEARWEEK()-funksie gee die jaar- en weeknommer ('n getal van 0 tot 53) vir 'n gegewe datum terug.

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:

Werk in:	Van MySQL 4.0

Gee die jaar- en weeknommer terug vir 'n datum:

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

Gee die jaar- en weeknommer vir die huidige stelseldatum terug:

SELECT YEARWEEK(CURDATE());