Functions and Directives Functions and Directives

Function DoW() Foundation

Converts a date value to a numeric weekday.

Syntax
DoW( <dDate> ) --> nDayOfWeek
Parameters
<dDate>
<dDate> is a date expression whose value is converted to the numeric weekday.
Return

DoW() returns the weekday as a number between 1 and 7. The first weekday (Sunday) has the value 1. The last weekday (Saturday) has the value 7. When <dDate> is empty or invalid, DoW() returns the value zero.

Description

DoW() is a conversion function with which a date value is converted to a number indicating the weekday. Using this function, date calculations may be made on a weekly basis. DoW() is similar to the function CDow() which returns the weekday as a character string.

Examples
DoW() 
// The example shows results of DoW() in comparison to CDow() 

PROCEDURE Main 

   ? Date()                        // result: 12/06/94 
   ? DoW(Date())                   // result: 3 
   ? CDow(Date())                  // result: Tuesday 
   ? DoW(Date() - 2)               // result: 1 
   ? CDow(Date() - 2)              // result: Sunday 

RETURN
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