SQL-between和

这将再次发生： 1. 2. 3. 4. 五,

我需要一些帮助来推进这个问题。如何将查询设置为打印每个数字返回多次

例如：

打印1到5之间的数字，并每3次打印一个数字

最终结果： 1. 1. 1. 2. 2. 2. 3. 3. 3. 4. 4. 4. 5. 5. 五,

顺便说一句，我会在Jasper ireport中使用它，不想使用进程、函数等

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请帮忙！提前感谢

尝试使用以下corss连接

with bar_no as (
select 1 start_bar, 5 end_bar from dual)
select barcode
from (select level barcode
from dual
connect by level <= (select max(end_bar) from bar_no)) a
where exists (
select 1
from bar_no
where barcode between bar_no.start_bar and bar_no.end_bar)

---

试着使用下面的交叉连接

with bar_no as (
select 1 start_bar, 5 end_bar from dual)
select barcode
from (select level barcode
from dual
connect by level <= (select max(end_bar) from bar_no)) a
where exists (
select 1
from bar_no
where barcode between bar_no.start_bar and bar_no.end_bar)

---

您可以在with语句中生成序列，然后将它们连接在一起：

with bar_no as (
select 1 start_bar, 5 end_bar from dual)
select barcode
from (select level barcode
from dual
connect by level <= (select max(end_bar) from bar_no)) a
where exists (
select 1
from bar_no
cross join 
(
  select 1
  union all
  select 2
  union all
  select 3  
   ) CJ
where barcode between bar_no.start_bar and bar_no.end_bar)

---

您可以在with语句中生成序列，然后将它们连接在一起：

with bar_no as (
select 1 start_bar, 5 end_bar from dual)
select barcode
from (select level barcode
from dual
connect by level <= (select max(end_bar) from bar_no)) a
where exists (
select 1
from bar_no
cross join 
(
  select 1
  union all
  select 2
  union all
  select 3  
   ) CJ
where barcode between bar_no.start_bar and bar_no.end_bar)

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您可以将此查询与另一个..连接方式level@SnowBlind你介意给我举个例子吗？检查@Gordon的答案，这就是我的意思。你可以用另一个…连接level@SnowBlind你介意给我举个例子吗？检查一下@Gordon的答案，这就是我的意思。谢谢Gordon！你回答得很快！这正是我想要的！谢谢谢谢戈登！你回答得很快！这正是我想要的！谢谢