在选择列表中获取Error无效，因为它不包含在聚合函数或GROUP BY子句中

Question

嗨，我是Sql的新手，我有这样的表

ID  | Name
   1    a
   2    a
   3    h
   4    e
   5    d
   6    d

想要的输出应该是

  name  | IDS
   a    1,2
   d    5,6

我曾尝试过但却抛出错误

select distinct  ID, (select CAST(t.ID AS VARCHAR(10)) +','
            from tbl t
            where t.ID=tb.ID
            for xml path('')) name
from tbl tb
group by name

以下错误：

invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause

任何人都可以建议我查询，请提前致谢

Answer 1

如果您使用的是MySQL

select name, group_concat(t.id)
from tbl tb
group by name
having count(*) > 1;

在SQL Server中：

select name, 
       stuff((select ',' + CAST(t.ID AS VARCHAR(255))
              from tbl t
              where t.name = tb.name
              for xml path('')
             ), 1, 1, '') name
from tbl tb
group by name
having count(*) > 1;