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mysql - Combining rows where dublicates are found

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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answered Oct 7, 2021 by 深蓝 (71.8m points)

you could try using group_concat

    select Computer.ID, group_concat(harddisk.id)
    from Computer 
    inner join harddisk on Computer.id = harddisk.computerID
    group by Computer.ID

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