Discover Teradata TPump, the real-time loading tool for transactional systems. TPump loads one row at a time, allowing concurrent INSERTs and UPDATEs using row hash locks. With TPump, you can throttle statement rates and execute DML functions, all wh...
Learn what a Teradata Query Band is and how it can be used to optimize queries in a Teradata system. Discover how to set, update, and read query bands, and how to use them for performance tuning. Find out what to consider when creating a query band i...
Learn how to create Teradata recursive queries using either the WITH RECURSIVE clause or CREATE RECURSIVE VIEW statement in this guide. Explore a real-world example of finding the shortest paths in a graph through a recursive solution.
What is the command DIAGNOSTIC HELPSTATS ON FOR SESSION in Teradata? Gathering statistics is a crucial aspect of optimizing performance. Collecting statistics requires resources, and it matters whether they are used only once in the ETL process or co...
Learn about Query Logging with Teradata DBQL Tables, a powerful feature for workload analysis and performance tuning. Configure settings and select which key figures to store and their level of detail. The article covers how to implement and activate...
The Teradata TO_CHAR Function Utilize the Teradata TO_CHAR function to: This is an example of a numeric expression argument, which can be any of the following data types: BYTEINT, SMALLINT, INTEGER, BIGINT, DECIMAL/NUMERIC, FLOAT/REAL/DOUBLE PRECISIO...
1. Avoid multiple Joins to the same table Reducing the number of joins to a table is crucial as each additional join could lead to a full table scan or an index access. This can be accomplished by implementing subqueries, volatile tables, or ordered...
Learn about Teradata's Parallel Transporter Utility (TPT), the all-in-one tool that combines Fastload, Multiload, TPUMP, BTEQ, and Fastexport functionalities. Discover the benefits of TPT's consistent syntax and parallelism, as well as a comprehensiv...
Introduction Teradata efficiently manages complex workflows by distributing and expanding processes across numerous AMPs. However, an AMP’s maximum capacity can initiate flow control mode. This blog post delves into Teradata’s Flow Control Mode, its...
In this article, we will delve into the world of Teradata set operators, exploring their functionality, applications for attaining peak performance, and the optimization techniques employed by Teradata. Teradata UNION vs. UNION ALL What sets UNION ap...