>>CREATE cursor Years (cname c(15),arrival D(8), Depart d(8)) >>INSERT INTO Years VALUES ('A',{^1945-07-01},{^1965-07-01}) && 20 year >>INSERT INTO Years VALUES ('B',{^1975-07-01},{^1977-07-01}) && 2 year >>INSERT INTO Years VALUES ('C',{^1975-07-01},{^1977-07-01}) && 2 year >>INSERT INTO Years VALUES ('D',{^1970-07-01},{^1991-07-01}) && 21 year >>INSERT INTO Years VALUES ('E',{^1981-07-01},{^1986-07-01}) && 5 year >>INSERT INTO Years VALUES ('F',{^1981-07-01},{^1986-07-01}) && 5 year >>INSERT INTO Years VALUES ('G',{^1987-07-01},{^1997-07-01}) && 10 year >>INSERT INTO Years VALUES ('H',{^1998-07-01},{^2009-07-01}) && 11 year >>INSERT INTO Years VALUES ('H',{^1940-07-01},{^1975-07-01}) && 35 year >>>>I want to get following results
>>var1=4 && duration is between 1 to 5 year >>var2=1 && duration is between 6 to 10 year >>var3=1 && duration is between 11 to 15 years >>var4=1 && duration is between 16 to 20 years >>var5=1 && duration is between 21 to 25 years >>var6=0 && duration is between 26 to 30 years >>var7=1 && duration is between 31 to 35 years >>>>and so on. Every group consists on 5 years
>select sum(iif(between(Duration,1,5), 000000000)) as Var1, >sum(iif(between(Duration,6,10), 000000000)) as Var2, etc. >from (select year(EndDate) - year(StartDate) as Duration from curYears) DurYear(Date1) - Year(date2) as Age is very approximate calculation, but I guess it will be sufficient for your purposes.