How does a programming skills help in marketing field

Answer 1

Programming gives power over the computational resources on your computers. You are only limited by your imagination. You can design a program to do almost anything, provided you have enough resources to make it computationally feasible.
In marketing you may want to have a program go through inventory and make a brochure to send to your clients. Maybe you want to notify your clients of events automatically. Maybe you want to advertise something, this needs an effective design, and digital design allows for interactive content.
In the end it depends on your needs, and what you can think of and deploy.

Answer 2

Thanks Adam mcgregor thanks for clearify