Is this something wrong with my SQL file or the configuration of zen cart's php?

Originally I only had one database 'shop_nailspaandbeauty_com' however we wanted a 2nd shop so we just renamed shop_nailspaandbeauty_com to retail_nailspaandbeauty_com and uploaded that into the 2nd database.

Was there something else I was supposed to have changed? I can't open the actual SQL file- it hangs my comp as the file is 3mb and my computer is kinda old..

any help would be great thanks!