weekday

Description

Syntax

INT WEEKDAY (DATETIME date)

The WEEKDAY function returns the index value of the working day of the date, that is, 0 on Monday, 1 on Tuesday, and 6 on Sunday.

The parameter is Date or Datetime type

Notice the difference between WEEKDAY and DAYOFWEEK:

  1. +-----+-----+-----+-----+-----+-----+-----+
  2. | Sun | Mon | Tues| Wed | Thur| Fri | Sat |
  3. +-----+-----+-----+-----+-----+-----+-----+
  4. weekday | 6 | 0 | 1 | 2 | 3 | 4 | 5 |
  5. +-----+-----+-----+-----+-----+-----+-----+
  6. dayofweek | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
  7. +-----+-----+-----+-----+-----+-----+-----+

example

  1. mysql> select weekday('2019-06-25');
  2. +--------------------------------+
  3. | weekday('2019-06-25 00:00:00') |
  4. +--------------------------------+
  5. | 1 |
  6. +--------------------------------+
  7. mysql> select weekday(cast(20190625 as date));
  8. +---------------------------------+
  9. | weekday(CAST(20190625 AS DATE)) |
  10. +---------------------------------+
  11. | 1 |
  12. +---------------------------------+

keywords

  1. WEEKDAY