What’s the most efficient method for data retrieval in large datasets? or How do you optimize data re

If speed is critical, consider approximate query processing (AQP). Tools like BlinkDB give you *good enough* results in a fraction of the time.

Sacrificing a bit of accuracy for performance is totally valid in some scenarios—like dashboards or real-time analytics.

NoSQL isn’t *always* the villain, but it’s easy to misuse. Maybe your schema design needs tweaking?