Based on text in string lookup value from another table

[Anonymous]

Hello,

I need help with the following step I need to take in the Query Editor for which I think I need the right M code:

I have two tables:

Table 1: 

URL	Description
https://www.mywebpage.com/my-page-keyword1-home/start	My start page
https://www.otherpage.com/Keyword2/start/home.html	My home page
etc

Table 2

Code	Keyword
10001	Keyword1
10002	Keyword2
etc

Desired version of table 1

URL	Description	Code
https://www.mywebpage.com/my-page-keyword1-home/start	My start page	10001
https://www.otherpage.com/Keyword2/start/home.html	My home page	10002
etc

So based on the keyword being found in the URL string, I would like to lookup the code of the keyword. There is always only one keyword in the URL string.

Who can help me with finding the M code to do this in the Query Editor?

Thanks for the help!!!!

[Jimmy801]

Hello @Anonymous 

you can add a new column to your data-table with this formula. KeyWords has to reference your data where your stored your keywords. If you have big data then there might some enhances needed

let
            CheckKeyWordColumn =Text.Combine( List.Transform(KeyWords[Keyword], (item)=> if Text.Contains(Text.Lower([URL]), Text.Lower(item)) then item else null),", "),
            GetCode = try Table.SelectRows(KeyWords, each [Keyword]= CheckKeyWordColumn)[Code]{0} otherwise null
        in 
            GetCode

Here a complete example

let
    Data = 
    let
        Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WyigpKSi20tcvLy/Xy60sT00qSExP1UvOz9XPrdQFsXWzUyvL84tSDHUz8nNT9YtLEotKlHSUfCsVwEwFkBqlWB1Uk/JLMlKL4CZ5Q0wwgmjWB5mjl1GSmwMxBsRFmJJakgwUVoqNBQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [URL = _t, Description = _t]),
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"URL", type text}, {"Description", type text}})
    in
        #"Changed Type",
    KeyWords = 
    let
        Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQwMDBU0lHyTq0szy9KMVSK1YEIGiEEjZRiYwE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Code = _t, Keyword = _t]),
        #"Changed Type" = Table.TransformColumnTypes(Source,{{"Code", type text}, {"Keyword", type text}})
    in
        #"Changed Type",
    
    AddCode = Table.AddColumn(Data, "Code", each let
            CheckKeyWordColumn =Text.Combine( List.Transform(KeyWords[Keyword], (item)=> if Text.Contains(Text.Lower([URL]), Text.Lower(item)) then item else null),", "),
            GetCode = try Table.SelectRows(KeyWords, each [Keyword]= CheckKeyWordColumn)[Code]{0} otherwise null
        in 
            GetCode)
in
    AddCode

Outcome is this

Copy paste this code to the advanced editor in a new blank query to see how the solution works.

If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too

Have fun

Jimmy

[Anonymous]

Hi Jimmy,

This seems to be working if it is a table inserted in Power Query itself (with create table), but what if I loaded the URL from Google Analytics and the keyword table from a database table?
I think I need to tweak 'the green parts' of your code, but not sure exactly what to change it to.
Can you help?

Thanks!

[Jimmy801 · Accepted solution]

Hello @Anonymous 

for sure you have to connect to your real data source. but as I don't know where your data is coming from and I probably have also no access to it, I had to simulate your data with some manual code. You have to change my code in order that its connecting to your data source

let
    Data = YourQueryToYourDataSourceComesHere,
    KeyWords = YourQueryToYouKeywordTableComesHere,
    ....

in case your data sources have other column names you have to change them in my code too. My starting point was always your dummy-table.

If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too

Have fun

Jimmy

[Vera_33]

Hi @Anonymous 

It depends on how you extract your Keyword from URL (how the URL constructs), this code is based on your sample, paste in Advanced Editor:

let
  Source = Table.FromRows(
    Json.Document(
      Binary.Decompress(
        Binary.FromText(
          "VcxBCoAgEAXQq4TrdKhlV4hOEC6shoQaFBsYvH2YEbT7H/5/86w8c7wGABExlAWX6HY0ayCgrEvWB2YJaeu0D4RwsUusWjXl5olN2Sjb/qXAHtMnjVXo6xmKYzzTWZlSX8Xe",
          BinaryEncoding.Base64
        ),
        Compression.Deflate
      )
    ),
    let
      _t = ((type nullable text) meta [Serialized.Text = true])
    in
      type table [URL = _t, Description = _t]
  ),
  LookupTable = Table.FromRows(
    Json.Document(
      Binary.Decompress(
        Binary.FromText("i45WMjQwMDBU0lHyTq0szy9KMVSK1YEIGiEEjZRiYwE=", BinaryEncoding.Base64),
        Compression.Deflate
      )
    ),
    let
      _t = ((type nullable text) meta [Serialized.Text = true])
    in
      type table [Code = _t, Keyword = _t]
  ),
  #"Changed Type" = Table.TransformColumnTypes(
    Source,
    {{"URL", type text}, {"Description", type text}}
  ),
  #"Added Custom" = Table.AddColumn(
    #"Changed Type",
    "Keyword",
    each Text.Proper(
      if Text.Contains([URL], "mywebpage") then
        Text.BetweenDelimiters([URL], "my-page-", "-")
      else
        Text.BetweenDelimiters([URL], ".com/", "/")
    )
  ),
  #"Added Custom1" = Table.AddColumn(
    #"Added Custom",
    "Code",
    each LookupTable[Code]{List.PositionOf(LookupTable[Keyword], [Keyword])}
  )
in
  #"Added Custom1"

[Anonymous]

Hey @Vera_33 Thanks, the code works.
But it looks like you create the keyword table yourself (instead of referring to the table loaded)? Or do I just not understand enough what is happening in the code?

In reality I have lots more URLs (85K of them) and lots more Keywords (about 2K of them). 

Can you help explain how to do this with tables loaded and/or explain your code a little more, please?

[Vera_33]

Hi @Anonymous 

Yes, I copied your data and put it in the same query so you can see the result. You can delete it, and refer to another query (your keyword table). 

The code from @Jimmy801 is better for different ways of construction in the URL.