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Sakila
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AdventureWorks
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AdventureWorks
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AdventureWorks
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WITH yourTable AS ( SELECT 1 AS id, 'A1' AS var1, 'B1' AS var2 UNION ALL SELECT 1, 'A2', 'B2' UNION ALL SELECT 1, 'A3', 'B3' ) SELECT id, GROUP_CONCAT(CONCAT_WS(',', var1, var2)) AS output FROM yourTable GROUP BY id;
id
output
1
A1,B1,A2,B2,A3,B3