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Text lesson

YEARWEEK

Example

Retrieve the concatenated year and week number for a specified date.

SELECT YEARWEEK(“2017-06-15”);

Definition and Usage

The YEARWEEK() function returns the year and week number (ranging from 0 to 53) for a specified date.

Syntax

YEARWEEK(date, firstdayofweek)

Parameter Values

Parameter

Description

date

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

firstdayofweek

Optional: Specifies the starting day of the week, which can be any of the following options:

  • 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

 

Technical Details

Works in:

 From MySQL version 4.0

More Examples

Example

Retrieve the year and week number concatenated for a given date.

SELECT YEARWEEK(“2017-10-25”);SELECT YEARWEEK(“2017-10-25”);

Example

Retrieve the year and week number concatenated for the current system date.

SELECT YEARWEEK(CURDATE());

 

 

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