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I talked to my Database instructor over this situation and he mentioned that this type of structure or "Audit Trail" is a very outdated technique. Although for our games it makes sense to use an Audit trail. But I am going to look into a more efficient way to do this...

Outdated or not, audit trails work if they are secure from anyone tampering with them

The problem is they show you the problem after it has occurred. Good programming/security will prevent the problem from happening in the first place.