BigData

Teradata Analytics Functions and Examples

Teradata analytic functions compute an aggregate value that is based on a group of rows optionally partitioning among rows based on given partition column. Just like other analytics systems, Teradata analytics functions works on the group of rows and optionally ignores the NULL in the data. Teradata also released the analytics system which provides more useful methods. The regular Teradata also provides some useful analytics function that you can use to perform day to day aggregation for reporting. Read: Teradata String Functions and Examples Teradata Set Operators: UNION, UNION ALL,…

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October 11, 2017
General

How Teradata Data Distribution Works on AMPs?

This article is about how Teradata data distribution works on the various AMP's present in the Teradata system. What is AMP? Before going in detail in the Teradata data distribution, lets check what AMP is? AMP, acronym for Access Module Processor, is the Virtual Processor (vproc) used to manage the database, handle file tasks and and manipulate the disk subsystem in the multi-tasking and possibly parallel-processing environment of the Teradata Database. Each AMP then contained its own microprocessor, disk drive, file system, database software (Database Manager), Teradata Operating System (TOS),…

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September 7, 2017
General

Teradata Architecture – Components of Teradata

The biggest strength of Teradata and Netezza data warehouse appliance (RDBMS) is parallel processing. Just like Netezza architecture, Teradata architecture is based on Massively Parallel Processing (MPP) architecture. The Teradata is made up of Parsing Engine, BYNET and Access Module Processors (AMPs) and other components such as nodes. Teradata is inexpensive, high-quality system that exceeded the performance of conventional relational database management systems. Read: Commonly used Teradata Date Functions and Examples Teradata Analytics Functions and Examples Teradata Set Operators: UNION, UNION ALL, INTERSECT, EXCEPT/MINUS Teradata Architecture – Components of Teradata…

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August 29, 2017
Netezza

Netezza and Teradata Comparison – Netezza vs Teradata

Both Netezza and Teradata are MPP (massively parallel processing) data warehouse appliance with shared nothing architecture where each processing unit is self contained with CPU, memory, and storage. The database gets subdivided across these processing units. In this article is all about Netezza and Teradata comparison – Netezza vs Teradata. The comparison Between Netezza and Teradata gives you little bit Architectural difference and SQL differences. Netezza and Teradata Comparison – Netezza vs Teradata Below are the some of the Netezza and Teradata comparison: Materialized view Both data warehouse appliance supports…

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August 23, 2017