Lectures related to Pivot table

Introduces OLAP concepts, schemas, queries, and optimizations for efficient data analysis.

Covers OLAP queries, examples of comparisons, ranking, and optimizations for query performance.

Covers data wrangling stages, structuring techniques, and common issues in data preparation.

Covers the process of building a database and using Scratch for data visualization.

Explores challenges and solutions for real-time updates on large column stores on disk, focusing on snapshot isolation and query performance.