Fixing a hole in a sewer pipe typically requires a professional plumber to perform a repair. The exact method used to fix the hole depends on the size and location of the damage, but typically involves cutting out the damaged section of the pipe and replacing it with a new piece. Depending on the type of pipe, the plumber may use a variety of materials such as PVC, cast iron, or clay. It's important to hire a licensed and experienced plumber to ensure proper repair and prevent further damage to the sewer system.