Question

我试图从连接中获取随机记录，但我无法让它工作！有任何想法吗？它使用的是Microsoft Access 2003。

table = members
===============
memberID int
name varchar

table = testimonials
====================
testimonialID int
memberID int
content memo

select m.*, (SELECT t.content from testimonials t where t.memberID=m.memberID ORDER BY rnd(t.testimonialID)) as testimonialtext
FROM members m;

我基本上需要每个成员记录和该成员的一个随机证明。我还应该补充一点，我已经在加入中尝试过了......

select m.*, t.content FROM members m
INNER JOIN testimonials t ON m.memberID=t.memberID
ORDER BY rnd(t.testimonialID)

感谢您的帮助。

Answer 1

尝试用TOP子句限制

select m.*, (SELECT top 1 t.content from testimonials t where t.memberID=m.memberID ORDER BY rnd(t.testimonialID)) as testimonialtext
FROM members m;

好的，那么我们可以做类似的事情：

select 
  m.*, 
  t3.content
FROM 
  members m, 
   (select 
      top 1 t.testimonialID, 
    from 
      testimonials t 
    where 
      t.memberID=m.memberID 
    order by 
      rnd(t.testimonialID)
    ) t2,
   testimonials t3 
where
  t3.testimonialID = t2.testimonialID;

ms访问连接中的2003随机记录

1 个答案: