Answer Posted / natrajboga

the INTCK function counts the number of intervals between
the two dates

where as INTCX function advances the date or time values
by a given interval and returns a date or time values

for example:

data xxx;
count= intck('week','1aug1998'd,'31aug1998'd);
run;
proc print;run;
the result would be 5 (it represents the no of weeks)

data yyy;
count= intnx('month','1aug1998'd,1);
run;

proc print;run;
the result would be the 1sep1998. becaz it corresponds to
the beginning of the next interval.

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