Set Dataset Metric in Global Variables

gblack686

I want to calculate the last day of a column in a dataset and use it dynamically in my SQL recipe. I'm not using Python so I don't know how to set it as a variable. Is there a way to call the metric straight from the SQL recipe? Or send the metrics to global variables after the dataset build?

Liev

Hi @gblack686

If you're using SQL for your recipe and the statement looks something like this:

SELECT column_1
       , column_2
       , column_date 
FROM table

you can just modify this to be

SELECT column_1
       , column_2
       , column_date
       , (SELECT MAX(column_date) FROM table) AS column_date_max
FROM table

This syntax can sometimes be inefficient if dealing with many such columns on large and non-indexed tables, but it's simple to follow without needing joins.