How do you modify databases like reputation_reward_rate?

[swedishchefborkbork]

I have mysql workbench but i have no idea what i'm doing; the guild reputation isn't affected by the reputation rate in the regular world config, so I read on another post from 2014 that it would be edited in reputation_reward_rate. However, the reputation ID for guilds is 1168, so can I add it somehow? How would I go about editing it?

Thank you!