3 ms·
I've seen the before-and-after at a company that didn't use this sort of modelling and then added it. It was like night and day - suddenly we stopped making emb
by jes5199 13y ago
I've seen the before-and-after at a company that didn't use this sort of modelling and then added it. It was like night and day - suddenly we stopped making embarrassing errors with people's money. Even without really optimizing it for speed, and just using MySQL, and without changing any of the other data model, it works.
- jasondc 13y agoInteresting, could you describe how the errors occurred?
- jes5199 13y agonot in detail, but imagine: you have code that walks a complex object graph every day to figure out how much money to move. The business rules interact in complicated ways. Do you trust that you'll always get the same value out of that system? Versus "select sum(value)" as a single query...