I have a problem with data. I have a very big data.
I guess it is about compressed 100 giga byte. I want to
change a field from 11(integer *8) digit to 8(integer
*4) digit. The field is like social security number.
but I just want to know population numbers. for example,
In this data ,
I guess the number of population is nearly 5 million.
I change the unique identify number. How can I change
the digit number? Please, let me know in fortran program?