Teradata Fundamentals
Teradata Fundamentals
About the Book
The book consists of a series of lecture notes on the corporate training the author has delivered across the world. It is meant to be as concise as possible for people working with Teradata that need practical answers now, instead of reading the whole documentation.
Since the audience is working professionals, a bit of experience working with other databases or with Teradata itself is recommended.
You can check a preview of the book as well as the code samples in www.learndataskills.eu
About the Author
Table of Contents
-
Introduction
- Relational Database Architecture
- Teradata Architecture
- Storage Architecture
- Primary Indexes
-
Indexes
- Partitioned primary index
- Secondary Index
- Join Indexes
- Exercise
-
Tables
-
CREATE TABLE - Views
- Useful system tables
- Measuring skew factors
- Exercise
-
- Macros
-
Joins - Types and strategies
- Processing joins
- Improvement tricks
-
Analysis of query plans
- Collecting Statistics
-
Explaining
EXPLAIN
-
Subqueries and Correlated subqueries
- Recursive Queries
- Exercise
- Solution
- OLAP functions
-
Stored Procedures
-
IFinside a Stored Procedure - Loops
-
Multiple
BEGIN/ENDstatements - Triggers
-
-
Performance Monitoring
- 1. Bad Query
- 2. Delay Time
- 3. Blocking
- 4. Server State
- 5. Skewness
- Some tips for improving your query
- Identify suspect queries
- Monitoring
- Prevention
-
Compression
- MVC
- ALC
- BLC
- Compression and Query Performance
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