从递归查询错误查看

Question

我有一个递归查询，工作得很好：

with cte as (
         select ps.SetProduct from PRODSET ps
         left join PRODUCT pr on pr.Product= ps.Product
         where ...

         union all

         select ps.SetProduct from PRODSET ps
         inner join cte on ps.Product= cte.SetProduct
         )

select distinct cte.SetProduct from cte

添加“创建视图”会在最后一行显示错误“关键字'SET'附近的语法不正确”。我甚至没有使用SET。

整码：

create view wiev_product as

with cte as (
         select ps.SetProduct from PRODSET ps
         left join PROD pr on pr.Product= ps.Product
         where ...

         union all

         select ps.SetProduct from PRODSET ps
         inner join cte on ps.Product= cte.SetProduct
         )

select distinct cte.SetProduct from cte

我通过一个未指定的ERP系统访问MYSQL服务器。是ERP限制，还是我的查询有问题？

在代码中是否有任何解决方法，我可以尝试？

谢谢。

编辑：Microsoft SQL Server 2012（SP1）错误156没有; as with错误102; as之间;与cte

Answer 1

这是一个ERP限制。而不是从cte创建视图而不是在第二个查询中使用该视图作为条件，我设法在具有两个cte的单个查询中完成所有操作。

with cte1 as (
         select ps.SetProduct from PRODSET ps
         left join PRODUCT pr on pr.Product= ps.Product
         where ...

         union all

         select ps.SetProduct from PRODSET ps
         inner join cte on ps.Product= cte.SetProduct
         ),

    cte2 as (
         select ps.SetProduct from PRODSET ps
         left join PRODUCT pr on pr.Product= ps.Product
         where ...

         union all

         select ps.SetProduct from PRODSET ps
         inner join cte on ps.Product= cte.SetProduct
         )

select distinct cte1.SetProduct from cte1
where cte1.SetProduct not in (select ... from cte2 where ...)