`CORR`
Data 360 Query Guide, mirrored from developer.salesforce.com: **Applies to:** ✅ Data 360 SQL ✅ Tableau Hyper API
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Mirror of <https://developer.salesforce.com/docs/data/data-cloud-query-guide/references/dc-sql-reference/corr.html> (Salesforce, Data 360 Query Guide), read 2026-10-23. Salesforce's own page is the authority; this copy exists because that site refuses non-browser readers.
CORR
Applies to: ✅ Data 360 SQL ✅ Tableau Hyper API
Computes the correlation coefficient between two sets of values.
<Y>: Adouble precisionexpression representing the dependent variable.<X>: Adouble precisionexpression representing the independent variable.
Returns a double precision value representing the correlation coefficient, ranging from -1 to 1. Returns NULL if the computation is meaningless (e.g., no valid input pairs).
- Returns NULL if there are no rows where both X and Y are non-null.
- A value of 1 indicates perfect positive correlation.
- A value of -1 indicates perfect negative correlation.
- A value of 0 indicates no linear correlation.
Find the correlation between two variables.
Calculate correlation for each category.