Applying 1NF
After creating ingredients and reviews entities, it's time to populate them with data from productqualityrating.
This step is crucial to ensure that each value within the ingredients and review is treated as a distinct entry, aligning with the principles of 1NF.
Start by crafting a query to transform and input the unnormalized data into these entities, adhering to the first normal form principles.
Deze oefening maakt deel uit van de cursus
Introduction to Data Modeling in Snowflake
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
SELECT
-- Clean empty values
___(f.value)
FROM productqualityrating,
-- Add function to split values separated by comma
LATERAL ___(INPUT => SPLIT(productqualityrating.___, ';')) f;