Tags for v_extensibility
Supporting SHA-2 hashing using a JAVA Table Operator
  Overview This article provides an example of implementing a java table operator. The specific use case is support for the SHA-2 family of hash encodings, for more details on SHA-2 see https://en.wikipedia.org/wiki/SHA-2
SHA-2 JAVA Table Operator v_extensibility
Implementing a multiple input stream Teradata 15.0 Table Operator for K-means clustering
Background This article is a follow on to article [1] which discussed implementing K-means using a Teradata release 14.10 table operator. The main contribution of this article is to discuss how to use the new Teradata 15.0 multiple input stream feature and a short discussion on a gcc compiler performance optimization.
analytics Table Operator udf machine learning v_extensibility
A Quick Tour of the XML Type
XML is a markup language, used to format data in a wide variety of applications. It is commonly used as a message format for application integration (e.g. XML messages exchanged between applications, with those applications implementing an XML based API).
XML Type XQuery shredding Publishing v_extensibility
Teradata Query Grid and Machine Learning in Hadoop
This article describes how to use Teradata query grid to execute a Mahout machine learning algorithm on a Hadoop cluster based on data sourced from the Teradata Integrated Data Warehouse.
query grid hadoop machine learning advanced analytics v_extensibility
XML Query
Querying XML
Running Unsupported Queries from a Stored Procedure
Stored Procedures SQL Stored Procedures were added to Teradata around 2003 with the release of Teradata V2R5.1. Since then the capabilities of SQL Stored Procedure s has been expanded. However, there are still some queries that cannot be run directly from within a Stored Procedure.  
java external stored procedure v_extensibility
In database multiple variable linear regression using the CM_Solve Table Operator
In a prior article [1] we described how to use the Teradata 14.10 CalcMatrix operator and R to perform a multiple variable linear regression analysis. This article extends that concept with a comprehensive in database solution by introducing a new in database table operator named “CM_Solve”.
Analytics UDFs Table Operators Matrix Regression v_extensibility
In database linear regression using the CalcMatrix table operator
Linear Regression In statistics, linear regression is an approach to model the relationship between a scalar dependent variable y and one or more independent variables denoted x. Linear regression is one of the oldest and most fundamental types of analysis in statistics. The British scientist Sir Francis Galton originally developed it in the latter part of the 19th century. The term "regression" derives from the nature of his original study in which he found that the children of both tall and short parents tend to "revert" or "regress" toward average heights.
UDF Table Operator Analytics Regression v_extensibility
K-means clustering and Teradata 14.10 table operators
Table Operators This article discusses how to implement a Teradata 14.10 table operator using K-means clustering as an example use case. 
UDF Table Operator Analytics v_extensibility
The Heatmap Table Function is now available
As part of Teradata Database 14.10 Teradata Intelligent Memory (TIM) feature, a table function was developed to provide the heatmap report for a specific AMP for database object(s) for systems in which data temperature collection is enabled[1].     This HeatMap table function is being provided fo
heatmap Teradata Intelligent Memory VeryHot heatmap table function heatmap report temperature veryhot cache temperature collection v_extensibility