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richard-powerbi's avatar
richard-powerbi
Post Patron
6 years ago
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How to remove and add keys? Table.ReplaceKeys how does it work?

I have a SQL table loaded in PBI. I want to create my own primary keys and qualify them as keys in PBI. The documentation on Table.ReplaceKeys is really bad. Can anyone explain how it works? Or is t...
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  • dax's avatar
    dax
    6 years ago

    Hi richard-powerbi , 

    It seems to change key, you could try below M code and refer to power-query-m-primer-part13-tables-table-think-ii  and this post  for details.

    let

   
  
  Source = #table(
    {"CompanyID", "Name", "Location"}, 
      {
        {1, "ABC Company", "Chicago"}, 
        {2, "ABC Company", "Charlotte"}, 
        {3, "Some Other Company", "Cincinnati"}
      }
    ),
  KeysTagged = Table.AddKey(Source, {"CompanyID"}, true),
  aa=Table.ReplaceKeys(
        KeysTagged,
        {
            [Columns = {"Location"},
            Primary = true]
        }
    )
in
 Table.Keys(aa)

    Best Regards,
    Zoe Zhi

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

dax's avatar
dax
Community Support
6 years ago

Hi richard-powerbi , 

It seems to change key, you could try below M code and refer to power-query-m-primer-part13-tables-table-think-ii  and this post  for details.

let

   
  
  Source = #table(
    {"CompanyID", "Name", "Location"}, 
      {
        {1, "ABC Company", "Chicago"}, 
        {2, "ABC Company", "Charlotte"}, 
        {3, "Some Other Company", "Cincinnati"}
      }
    ),
  KeysTagged = Table.AddKey(Source, {"CompanyID"}, true),
  aa=Table.ReplaceKeys(
        KeysTagged,
        {
            [Columns = {"Location"},
            Primary = true]
        }
    )
in
 Table.Keys(aa)

Best Regards,
Zoe Zhi

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.