Example: Function Mapping Definition with Multiple Variable Substitutions - Advanced SQL Engine - Teradata Database

SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
Published
January 2021
Language
English (United States)
Last Update
2021-01-22
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dita:id
B035-1144
lifecycle
previous
Product Category
Teradata Vantage™
The function mapping definition usr_SVMSparse specifies the following variable substitutions:
  • AttributeColumn is substituted for AttributeNameColumn
  • LabelColumn is substituted for ResponseColumn
  • ValueColumn is substituted for AttributeValueColumn

If the parameter AttributeNameColumn is specified during function processing, AttributeColumn is substituted for function processing. Similarly, if ResponseColumn is specified during function processing, LabelColumn is used. If AttributeValueColumn is specified during function processing, ValueColumn is used.

CREATE FUNCTION MAPPING usr_SVMSparse
FOR SparseSVMTrainer SERVER TD_SERVER_DB.coprocessor
USING
InputTable IN TABLE ,
ModelTable OUT TABLE ,
IDColumn ,
SampleIdColumn ,
AttributeColumn(AttributeNameColumn) ,
LabelColumn(ResponseColumn),
ValueColumn(AttributeValueColumn),
HashProjection , "Hash" , HashBuckets ,
Cost , Bias , ClassWeights ,
MaxStep ,
Epsilon , Seed , SequenceInputBy
;