nPath Function Results Example | Teradata Vantage - nPath Results Example: Combine Values from One Row with Values from the Next Row - Analytics Database

Input

The input table is clickstream, as in nPath Filters Example.

SQL Call

SELECT * FROM nPath (
  ON clickstream PARTITION BY userid ORDER BY userid, sessionid, clicktime
  USING
  Mode (OVERLAPPING)
  Pattern ('A.B')
  Symbols (TRUE AS A, TRUE AS B)
  Result (
    FIRST (sessionid OF A) AS sessionid,
    FIRST (pagetype OF A) AS pageid,
    FIRST (pagetype OF B) AS next_pageid
  )
) ORDER BY sessionid;

Output