sql - 用双表连接 SQL 中的其他表

Question

SQL 控制台

select trunc((:FromDate)+1)-rn as date_Val
  from ( select rownum rn 
           from dual
        connect by level <= ((:FromDate)-(:todate))+1)
 order by trunc(:FromDate)-rn 

我想将此列与其他表一起加入。当我在子查询中写入时返回多行错误显示

Answer 1

把它变成一个 cte 并在它下面写下你的查询：

with dateseq as
(
      select trunc((:FromDate)+1)-rownum as date_val
      from dual 
      connect by level <= ((:FromDate)-(:todate))+1)
)

select * from dateseq inner join ...

ps：稍微简化了您的查询-您不需要子查询