1.1 - 8.10 - nPath Example: First Product with Multiple Referrers - Teradata Vantage

Teradata Vantage™ - Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.1
8.10
Release Date
October 2019
Content Type
Programming Reference
Publication ID
B700-4003-079K
Language
English (United States)

This example finds the first product with multiple referrers in any session.

SQL Call

SELECT * FROM NPath@coprocessor (
  ON aggregate_clicks PARTITION BY sessionid ORDER BY clicktime
  USING
    Mode(nonoverlapping)
    Pattern('REFERRER{2,}')
    Symbols(referrer IS NOT NULL AS REFERRER)
    Result (FIRST(sessionid OF REFERRER) AS sessionid,
            FIRST(productname OF REFERRER) AS product)
) AS dt;

Output

 sessionid product    
 --------- ---------- 
         5 appliances
         4 tables    
         2 tables    
         3 bookcases 
         1 envelopes

Download a zip file of all examples and a SQL script file that creates their input tables from the attachment in the left sidebar.