On the contrary, in his case, his program drops zeros that should be kept (zip codes, phone numbers). Your answer is valid, but off-topic. Yet, I did not downvote you, you wanted to help.

Back to the question. I think that the real problem is that in the database, phone numbers and zip codes are described as numbers, and this is wrong. Phone numbers are strings, not numbers (consider 1-800-COLLECT), and zip codes are strings, not numbers (consider British and Canadian zip codes). Like gellyfish said, a few lines of code would help (do not post your whole program, yet, just select the few lines in question).