MySQL LEFT JOIN Three Tables for Fearful Persons
To retrieve a list of individuals with their associated fears, you must seamlessly merge three interconnected tables:
Modifying Your LEFT JOIN Query
Your initial attempt at creating a LEFT JOIN encountered an issue. The specified join condition, person_fear.personid = person_fear.fearid, doesn't align with the desired relationship between the tables. To correctly link the Persons table to the Fears table through the Person_Fear intermediary, use this modified code:
SELECT Persons.Name, Persons.SS, Fears.Fear FROM Persons LEFT JOIN Person_Fear INNER JOIN Fears ON Person_Fear.FearID = Fears.FearID ON Person_Fear.PersonID = Persons.PersonID
Explanation of the Modified Query
Alternative Query Syntax
An alternative way to write the LEFT JOIN query is:
SELECT Persons.Name, Persons.SS, Fears.Fear FROM Persons LEFT JOIN Person_Fear ON Person_Fear.PersonID = Persons.PersonID LEFT JOIN Fears ON Person_Fear.FearID = Fears.FearID
This syntax is equally effective in retrieving the desired data, utilizing two LEFT JOINs to connect the tables.
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