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While writing a custom Mix task in Elixir, I ran into minor challenges for running / executing an Ecto query to update a database table column from within my mix task. It was not straightforward initially thus I thought to share here. In this short article, we will also see how to pass arguments to our mix task to run dynamic query.

First, what is Mix? Elixir documentation says:

Mix is a build tool that ships with Elixir that provides tasks for creating, compiling,

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