Neoview SQL Reference Manual (R2.4 SP2)

DAYOFWEEK Function
The DAYOFWEEK function converts a DATE or TIMESTAMP expression into an INTEGER
value in the range 1 through 7 that represents the corresponding day of the week. The value 1
represents Sunday, 2 represents Monday, and so forth.
DAYOFWEEK is a Neoview SQL extension.
DAYOFWEEK (datetime-expression)
datetime-expression
is an expression that evaluates to a datetime value of type DATE or TIMESTAMP. See
“Datetime Value Expressions” (page 245).
Example of DAYOFWEEK
Return an integer that represents the day of the week from the START_DATE column in the
PROJECT table:
SELECT start_date, ship_timestamp, DAYOFWEEK(start_date)
FROM persnl.project
WHERE projcode = 1000;
Start/Date Time/Shipped (EXPR)
---------- -------------------------- ------
2008-04-10 2008-04-21 08:15:00.000000 5
The value returned is 5, representing Thursday. The week begins on Sunday.
378 SQL Functions and Expressions