Why am I getting a MySQL error?
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John Hoffman
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Published on 2012-04-08T05:18:02Z
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2012/04/08
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Here is my query. Its intention is allow access to properties of the animals that constitute a match of two animals.
The match table contains columns for animal1ID and animal2ID to store which animals constitute the match.
SELECT id,
(SELECT *
FROM animals
WHERE animals.id=matches.animal1ID) AS animal1,
(SELECT *
FROM users
WHERE animals.id=matches.animalID) AS animal2
FROM matches WHERE id=5
However, MySQl returns this error: Operand should contain 1 column(s).
Why? Is there an alternative way to do this, perhaps with a JOIN statement?
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