SQL 把查出来的信息整合为一张表

时间:2023-03-09 15:10:57
SQL 把查出来的信息整合为一张表
select name ,population from bbc where name='France'
union all
select name ,population from bbc where name='Germany'
union all
select name ,population from bbc where name='Italy'

显示结果

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其中关键字为:union all ,它可以把查出的信息归到下一行。