Leader specific functions
Leader nodes have special functions that run only on them, a common source of errors. For example, you should always use the SUBSTRING function and avoid SUBSTR. Let's experiment and see why.
Acest exercițiu face parte din cursul
Introduction to Redshift
Exercițiu interactiv practic
Încearcă acest exercițiu completând acest cod de exemplu.
-- Use SUBSTR on 'datacamp' starting at 4 as extract
SELECT ___('___', ___) AS ___;