The new Column comparison in queries in Dynamics 365 / PowerApps

Nishant Rana's Weblog

Column Comparison is one of the best features that has been recently added to the product.

Column comparison allows us to compare values of 2 different columns in our query be it Fetch XML, Web API, or through SDK API.

Sharing some of the basic examples that we tried using our favorite  FetchXML Builder

  • If we run the following query “Find all contact which has the first name equal to the last name”

The result –

  • Find all contact where the first name is not equal to last name

The result –

The operators supported are –

EqualLessEqualGreaterEqual
Not EqualLessThanGreaterThan
  • Only 2 columns can be compared.
  • Only compatible attribute types can be compared.
  • E.g. “Find all contact where the first name is equal to address 1 city”

The result

It works as both are string attributes.

  • If we try comparing text field with options set, we…

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