The INTEGER-OF-DATE function converts a date in the Gregorian calendar from standard date form (YYYYMMDD) to integer date form. The type of this function is integer. 
 
  General Format
 
	  
	  
 
  Arguments
 
	   
	 - Argument-1 must be an integer of the form YYYYMMDD, whose value is obtained from the calculation: 
		(YYYY * 10,000) + (MM * 100) + DD. 
		  
		  - YYYY represents the year in the Gregorian calendar. It must be an integer greater than 1600. 
		  
- MM represents a month and must be a positive integer less than 13. 
		  
- DD represents a day and must be a positive integer less than 32 provided that it is valid for the specified month and year combination. 
		  
 
Returned Values
 
	   
	 - The returned value is an integer that is the number of days by which the date represented by argument-1 succeeds December 31, 1600, in the Gregorian calendar.