2011-09-07Continuing with Data-Clusters

Today’s installment covers the first two parts from Chapter 5, „Clustering Data“. It explains the “cluster” term and demonstrates the impact of clustering data with a simple example.

This will be the basis for the next installment, which explains why adding another where clause may slowdown statement execution. Not just a little bit, but by factors. That is actually the question that has the highest failure rate at the 3 minute test.