Table A has the values below for example: As soon as a change takes place in the PARAM_VALUE column (for the PARAM_NAME called "LINE")... I need to be able to know right away and perform my logic on that change.
Multiple changes can take place at the same time and I need to account for that.
I am not sure how to do make this work since there could be multiple changes on the same name/value pair for different order numbers at the same exact time.

I was originally thinking that a trigger would work to where as soon as a value changes for the given param_name, perform my logic.
Could you guys please give me some detailed help on this with examples. I would appreciate it very much. Thank you in advance.