Explain the concept of column-level statistics and histograms in query optimization and cost-based query planning, and how
Fantastic news! We've Found the answer you've been seeking!
Question:
Explain the concept of column-level statistics and histograms in query optimization and cost-based query planning, and how they inform the query optimizer about data distribution, selectivity estimates, and cardinality estimates for efficient query execution?
Related Book For
Financial Markets and Institutions
ISBN: 978-0077861667
6th edition
Authors: Anthony Saunders, Marcia Cornett
Posted Date: