Question

我的问题是我使用查询，当我先调用它时必须返回N值，然后下一个N值等。我也有一些类型的排序，如按日期排序，按字名等排序，asc和desc变种。我使用按日期排序的地方我可以使用像id＆gt; N（在我的代码中＆gt; 3）的东西，即第一个id是4，最后一个id是9然后在下一个查询中首先是10和最后15等等但是该做什么如果我需要按字名排序，我怎样才能确定从哪个词开始？

  select distinct s.a,w._word
  from (
        select a from edges 
        where a in 
        (
            select distinct w._id
            from edges as e 
            inner join words as w
            on w._id=e.a
            where w.lang_id=2
        ) and b in
        (
            select distinct w._id
            from edges as e 
            inner join words as w
            on w._id=e.b
            where w.lang_id=1
        )
        union
        select b from edges 

        where b in 
        (
            select distinct w._id
            from edges as e 
            inner join words as w
            on w._id=e.b
            where w.lang_id=2
        ) and a in
        (
            select distinct w._id
            from edges as e 
            inner join words as w
            on w._id=e.a
            where w.lang_id=1
        )
) as s
inner join words as w
on s.a=w._id 
inner join groups_set as gs
on w._id=gs.word_id
 where gs.group_id in (1,2,3) or w._word like '%d%' and a>3
order by w._word desc limit 5

Answer 1

我的问题是错的吗？ LIMIT可以与偏移量一起使用。

要么

... LIMIT 5 OFFSET 5

或

... LIMIT 5, 5

您不在查询中处理偏移量，只需在应用程序中增加它。

有了这个，你也可以ORDER BY随心所欲。

限制和排序，从哪个词必须开始下一个结果

1 个答案: