Question

我有一个程序列表，我可以在这些程序中获得一系列功能。

但我需要创建一种递归方式来查看这些函数中是否有函数。这是我开始的方式：

select  referencing_id,
        object_name(referencing_id) as referencing_object_name,
        object_name(sed.referenced_id) as referenced_object_name
from    sys.sql_expression_dependencies as sed
inner join sys.objects as obj
on      sed.referencing_id = obj.object_id
inner join #temp a
on      a.procedure_name = object_name(referencing_id)
where   referenced_entity_name in (select name
                                   from   sys.objects
                                   where  type_desc like '%function%')
order by referencing_object_name

这段代码为我提供了一个程序和功能列表。

我怎么能在这里更进一步，以确保我对我在这里找到的函数进行递归，这样如果这些函数中有函数，我也会看到它？

注意：我不需要对实际过程进行递归。程序清单已经是我需要的所有程序。我只是在寻找函数中的函数。

感谢您的帮助！

Answer 1

你可以像处理程序查询一样，而不是#temp a，因为你没有说，我不知道那是什么。因此，您将加入引用类型为函数的sys.objects，并在引用类型也是函数的情况下自行加入它。这是您的查询已更新，仅适用于函数：

select  referencing_id,
        object_name(referencing_id) as referencing_object_name,
        object_name(sed.referenced_id) as referenced_object_name
from    sys.sql_expression_dependencies as sed
inner join sys.objects as obj
on      sed.referencing_id = obj.object_id
inner join sys.objects a
on      a.name = object_name(referencing_id) and a.type_desc like '%function%'
where   referenced_entity_name in (select name
                                   from   sys.objects
                                   where  type_desc like '%function%')
order by referencing_object_name

如果你想获得程序引用的函数列表，它引用了其他函数，它可以像这样:(注意：我不是100％确定这是最好的方法）：

select  referencing_id,
        object_name(referencing_id) as referencing_object_name,
        object_name(sed.referenced_id) as referenced_object_name
from    sys.sql_expression_dependencies as sed
inner join sys.objects as obj
on      sed.referencing_id = obj.object_id
inner join sys.objects a
on      a.name = object_name(referencing_id) and a.type_desc like '%function%'
where   referenced_entity_name in (select name
                                   from   sys.objects
                                   where  type_desc like '%function%')
        and object_name(sed.referenced_id) in (select  object_name(sed.referenced_id) as referenced_object_name
                                        from    sys.sql_expression_dependencies as sed
                                        inner join sys.objects as obj
                                        on      sed.referencing_id = obj.object_id
                                        inner join sys.procedures a
                                        on      a.name = object_name(referencing_id)
                                        where   referenced_entity_name in (select name
                                                                           from   sys.objects
                                                                           where  type_desc like '%function%'))

如何在SQL Server的过程中获取递归的函数列表？

1 个答案: