/* ___ Déclarations _____________________________________________________________________
date        myDate
num_e(4,0)  myYear
num_e(2,0)  myMonth
num_e(2,0)  myDay

/* ___ Code _____________________________________________________________________________
myYear      = &date_to_year(myDate)                            /* extract the year from the date myDate (year will be in format CCYY (century + year)  
myMonth     = &date_to_month(myDate)                           /* extract the month from the date myDate
myDay       = &date_to_day(myDate)                             /*  extract the day from the date myDate
myDateNum   = &date_to_num(myDate)                             /* convert the date myDate to a numerical date (YYYYMMDD format)