Combining columns with null value

Data Pipeline

When using the Combine Columns data pipeline step to combine two columns, if one of the columns is null then the combined column will also be blank. This is because concatenation will ignore a null column and not show it in the result.

Combining columns that have a null value

To address this, you can use a case statement formula in an Edit Column step prior to combining the columns.

Write a case statement in an Edit Column Pipeline step

An example case statement formula is as follows:

case when "Column2" is null then 0 else "Column2" end

This filled in the null values of Column2 with a 0, so the combined columns now show a result.

Combining columns final result


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