Rule Details in IS

Hi Experts,

I have few questions in IS.

1. Can anyone tell me where can I find the details of the rule, rule description, expression etc.(All the details in rule editor).

Ex: if I want my rule expression details, where can I find those details.

2. If I want to delete my rule in IS through SQL, where can I find my rule in the table & how can I delete my rule?

Regards

Krishna Mohan