SQL语句 合并列值 将一列的多个值合并成一行

oralce写法:
select WM_CONCAT(A.title) as citys from tmpcity A

sql server写法:
select stuff((select ','+A.title from tmpCity A FOR xml PATH('')), 1, 1, '') as citys

mysql写法:
select GROUP_CONCAT(A.title) as citys from tmpcity A; --默认的逗号分隔

select GROUP_CONCAT(A.title SEPARATOR ' ') as citys from tmpcity A; --用空格分隔

posted @   QAQhong  阅读(328)  评论(0编辑  收藏  举报
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