Script Logic to Copy records

Hi,

I have a consolidation Multi provider and I have 100 records for Comp Code-XX1. I want to write a Logic Scrip to copy the Comp code-XX1 to Comp Code-YY1. After execution of my logic script the no- of records will be 200, (i.e, Comp Code-XX1 = 100 Records, Comp Code-YY1 = 100 Records