Validation is the final check before you finish. You want to be sure every number is real. You can use simple math to check the total count. Compare this count to your original raw file numbers. They should match up if you did not lose data.

Try calling a few numbers to see if they work. This is a manual check that ensures high quality. It proves that your cleaning process actually worked well. Validation gives you confidence in the work you performed today. You are now a master of cleaning database lists!

This is our website: https://fristdatabase.com