st: import long variable

[Juan Ram�n Garc�a L�pez <jgarcia@fedea.es>]

Dear all,

I have a database in '.txt' format. My database has a 18-characters variable 
(idvar). When I try to pass it to '.dta' format, I write the
following dictionary:

-------------------------------
dictionary {
   _column(1) double idvar %18f
....
}
-------------------------------

My problem is that Stata approximates the last numbers of  'idvar'. I 
already know that the problem could be solved importing the variable like 
"string". Do you know another way to solve this problem?

Thank you very much. 
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