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SELECT
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COUNT(*)
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FROM
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routes
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INNER JOIN
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airports
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AS
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origin
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ON
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origin.iata_faa = routes.origin_code
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INNER JOIN
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airports
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AS
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destination
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ON
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destination.iata_faa = routes.dest_code
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WHERE
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origin.city = 'New York'
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AND
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destination.city = 'Paris';
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