小编Rai*_*der的帖子

有没有办法在sql server case/when语句中从"then"运行select语句？(我需要从then语句运行子查询.)我不能在where语句中使用它.

select 
  case @Group 
    when 6500 then (select top 10 * from Table1)
    when 5450 then (select top 5 * from Table1)
    when 2010 then (select top 3 * from Table1)
    when 2000 then (select top 1 * from Table1)
    else 0 
  end as 'Report'