# 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)

```
```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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