DAYOFWEEK
Sintassi
DAYOFWEEK(data)
Spiegazione
Restituisce il numero del giorno della settimana corrispondente alla data specificata (1 = domenica, 2 = lunedì, ..., 7 = sabato). Questi valori rispettano lo standard ODBC.
Ciò differisce dalla funzione WEEKDAY()
, che segue una numerazione differente (0
= lunedì, 1
= martedì, ... 6
= domenica).
Esempi
MariaDB [(none)]> SELECT DAYOFWEEK('2007-02-03'); +-------------------------+ | DAYOFWEEK('2007-02-03') | +-------------------------+ | 7 | +-------------------------+ 1 row in set (0.00 sec) MariaDB [(none)]>
CREATE TABLE t1 (d DATETIME); INSERT INTO t1 VALUES ("2007-01-30 21:31:07"), ("1983-10-15 06:42:51"), ("2011-04-21 12:34:56"), ("2011-10-30 06:31:41"), ("2011-01-30 14:03:25"), ("2004-10-07 11:19:34");
MariaDB [test]> SELECT d, DAYNAME(d), DAYOFWEEK(d), WEEKDAY(d) from t1; +---------------------+------------+--------------+------------+ | d | DAYNAME(d) | DAYOFWEEK(d) | WEEKDAY(d) | +---------------------+------------+--------------+------------+ | 2007-01-30 21:31:07 | Tuesday | 3 | 1 | | 1983-10-15 06:42:51 | Saturday | 7 | 5 | | 2011-04-21 12:34:56 | Thursday | 5 | 3 | | 2011-10-30 06:31:41 | Sunday | 1 | 6 | | 2011-01-30 14:03:25 | Sunday | 1 | 6 | | 2004-10-07 11:19:34 | Thursday | 5 | 3 | +---------------------+------------+--------------+------------+ 6 rows in set (0.00 sec)
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