SQL groupby 汇总与联合

Question

Sql 问题：

enter image description here 竞争国美国 Acme 公司美国环球交易所法国开放媒体美国K-bam 英国帽钻德国海克斯格林 D-ranron 法国法克斯拉西班牙输出应该是

国家竞争对手法国 2 德国 1 西班牙 1 英国 1 美国 3 总计：8 除了将 groupby 与 rollup 一起使用外，我试图通过“union”解决它，但结果是“order by is not functioning”（应该按国家名称订购，但我的输出结果是“按竞争对手订购”......）这是我的代码：

(select country, count(competitor) as competitors
    from table
    group by 1
    order by 1 
    )
    union all
    (select "Total:" as country, count(*) as competitors from table);

如有任何帮助，我们将不胜感激！谢谢！

Answer 1

如果你想要排序的结果，你需要 order by after the union:

(select country, count(competitor) as competitors
 from table
 group by 1
) union all
(select 'Total:' as country, count(*) as competitors
 from table
)
order by (country = 'Total:') desc, country asc

SQL groupby 汇总与联合

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