st: recoding variables in order to merge datasets

["Erica Seiguer" <erica_seiguer@student.hms.harvard.edu>]

Hi

I am trying to merge two datasets which have the same variable coded
differently in each.

In dataset 1, the variable is 6 digits, with the first digit being a zero.

in dataset 2, the same variable is 5 digits, and the first digit (which
should be a zero) as been truncated.

Does anyone know how to add a zero to the variable in the second dataset?

thank you!

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/