find all two word phrases that appear in more than one row in a dataset

Question

We would like to run a query that returns two word phrases that appear in more than one row. So for e.g. take the string \"Data Ninja\". Since it appears in more than one ro

Answer 1

A very useful hack which inspired me to solve my problem, thanks.

My data is a combination of passengers and their age where age is a string of numbers:

adults ages
------ -------------
  4    "53,67,65,68"       
  4    "44,45,69,65" 
  3    "20,21,20"
  3    "30,32,62"

I wanted to add a column on each row containing the difference in age between the highest and lowest value

adults ages          agediff
------ ------------- -------
   4   "53,67,65,68" 15       
   4   "44,45,69,65" 25
   3   "20,21,20"    1
   3   "30,32,62"    32

This was done by the following, heavily inspired by the hack:

SELECT adults, ages, SUBTRACT(INTEGER(maxage),INTEGER(minage)) agediff FROM 
 (SELECT adults, ages, max(age) maxage, min(age) minage FROM
  (SELECT adults, ages, age FROM 
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="3")),
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'\d\d\,([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="3")),
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'\d\d\,\d\d\,([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="3"))
  ),
  (SELECT adults, ages, age FROM 
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="4")),
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'\d\d\,([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="4")),
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'\d\d\,\d\d\,([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="4")),
   (SELECT adults, ages, REGEXP_EXTRACT(ages, r'\d\d\,\d\d\,\d\d\,([\d\d\,]{2})') age FROM [PaxAgeCombinations] WHERE (adults="4"))
  )

)