Why data warehouse professionals have been doing “bronze, silver, gold” for over 20 years. If you have been working in data warehousing for any length of time, the first time you heard about the “medallion architecture” you probably had one reaction: We already do this. You were right. The medallion architecture, popularized by Databricks as …
Learn about the goals of SQL tuning and how to optimize database performance by reducing resource usage. Skew, IOs, and CPU seconds are key metrics. Discover how to ensure completeness and correctness of Teradata statistics, detect missing and stale statistics, and improve query plans.
Teradata Table Design Checklist As creating tables is a frequent task, I deemed it necessary to provide a checklist. 1. Primary Index Or NOPI Table? The Primary Index serves multiple purposes, primarily functioning as the primary access path to the data and being optimized for an even distribution of rows. However, designing a table without …
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