How can you perform a left join in Alteryx?

To perform a left join in Alteryx, the Join tool is utilized. This tool is specifically designed to combine two data streams based on a common field or fields, allowing the user to retain all records from the left input while including corresponding records from the right input where available. When a left join is executed, any unmatched records from the right input will not be included in the final output, but all records from the left input are guaranteed to be present.

The Join tool provides an easy interface for selecting the fields to join on and also allows for the specification of how to handle unmatched records, facilitating flexible data manipulation. This capability is essential when trying to maintain all data from one dataset while selectively joining information from another.