Datalake jointure analytique

Question

J'ai 2 table. Je veux classer l'URL qui est dans la table [Activite_Site] J'ai essayé la question ci-dessous, mais cela ne fonctionne pas ... N'importe qui a l'idée. Nous vous remercions à l'avance

Table [Categorie] 
URL       CAT 
http//www.site.com/business B2B 
http//www.site.com/office B2B 
http//www.site.com/job  B2B 
http//www.site.com/home  B2C 

Table [Actvite_Site] 
URL 
http//www.site.com/business/page2/test.html 
http//www.site.com/business/page3/pagetest/tot.html 
http//www.site.com/office/all/tot.html 
http//www.site.com/home/holiday/paris.html 
http//www.site.com/home/private/moncompte.html 

I would like OUTPUT : 

URL_SITE           CATEGORIE 
http//www.site.com/business/page2/test.html   B2B 
http//www.site.com/business/page3/pagetest/tot.html B2B 
http//www.site.com/office/all/tot.html    B2B 
http//www.site.com/home/holiday/paris.html   B2C 
http//www.site.com/home/private/moncompte.html  B2C 
http//www.site.com/test/pte.html     Null 

My query : 

    SELECT A.URL AS URL_SITE 
      C.CAT AS CATEGORIE 
    FROM Actvite_Site as A 
     LEFT Categorie as C ON C.URL==A.URL.PadLeft(C.URL.Lenght) 

Answer 1

erreur RE E_CSC_USER_JOINCOLUMNSEXPECTEDONEACHSIDEOFCONDITION, U-SQL ne prend pas en charge colonnes dérivées dans des conditions de jointure. Un moyen d'y parvenir pourrait être de trouver les URL correspondantes, puis les associer et les UNION ensemble.

@category = SELECT * 
    FROM (
     VALUES 
      ("http//www.site.com/business", "B2B"), 
      ("http//www.site.com/office", "B2B"), 
      ("http//www.site.com/job", "B2B"), 
      ("http//www.site.com/home", "B2C") 
     ) AS x(url, cat); 


@siteActivity = SELECT * 
    FROM (
     VALUES 
      ("http//www.site.com/business/page2/test.html"), 
      ("http//www.site.com/business/page3/pagetest/tot.html"), 
      ("http//www.site.com/office/all/tot.html"), 
      ("http//www.site.com/home/holiday/paris.html"), 
      ("http//www.site.com/home/private/moncompte.html"), 
      ("http//www.site.com/test/pte.html") 
     ) AS x(url); 


// Find matched URLs 
@working = 
    SELECT sa.url, 
      c.cat 
    FROM @siteActivity AS sa 
     CROSS JOIN 
      @category AS c 
     WHERE sa.url.Substring(0, c.url.Length) == c.url; 


// Combine the matched and unmatched URLs 
@output = 
    SELECT url, 
      cat 
    FROM @working 

    UNION ALL 

    SELECT url, 
      (string) null AS cat 
    FROM @siteActivity AS sa 
     ANTISEMIJOIN 
      @working AS w 
     ON sa.url == w.url; 



OUTPUT @output TO "/output/output.csv" 
USING Outputters.Csv(quoting:false); 

Je me demande s'il existe un moyen plus efficace.