你可以加入存储过程吗?

时间:2012-10-18 22:20:35

标签: sql sql-server sql-server-2008 tsql

我有一堆WITH语句:

;with OneAccession as (
        select client_id,COUNT(patient_id) PatientCount from
        (
            select client_id,patient_id
            from F_ACCESSION_DAILY
            group by CLIENT_ID,PATIENT_ID
            having COUNT(ACCESSION_ID)=1
        ) a
        group by CLIENT_ID
    )
    ,

    TwoAccessions as (
    select client_id,COUNT(patient_id) PatientCount from
        (
            select client_id,patient_id
            from F_ACCESSION_DAILY
            group by CLIENT_ID,PATIENT_ID
            having COUNT(ACCESSION_ID)=2
        ) a
    group by client_id
    )

    ,

    ThreeAccessions as (
    select client_id,COUNT(patient_id) PatientCount from
    (
        select client_id,patient_id
        from F_ACCESSION_DAILY
        group by CLIENT_ID,PATIENT_ID
        having COUNT(ACCESSION_ID)=3
    ) a
    group by client_id
    )
etc

我在

上加入这些陈述
select * from myTable
join OneAccession
on...
join TwoACcessions
on...
join ThreeAccessions

我可以创建一个存储过程,而不是拥有所有那些with语句吗?我只需传递having count(accession_id)=**@myParam**的值并执行此操作:

select * from myTable
join storedproc(1)
on...
join storedproc(2)
on...
etc...

加入存储过程中是否存在问题?我的方法是否正常?

3 个答案:

答案 0 :(得分:3)

看看APPLY。将APPLYtable-valued functions一起使用似乎是使用APPLY的典型示例,我认为这就是您想要的。

使用示例(使用AdventureWorks)查看此blog post

select f.FirstName
      ,f.LastName
      ,f.JobTitle
      ,f.ContactType
      ,cc.CardNumber
from Sales.CreditCard cc
join Sales.ContactCreditCard ccc on cc.CreditCardID=ccc.CreditCardID
cross apply dbo.ufnGetContactInformation(ccc.ContactID) f
where cc.ExpYear=2008
  and cc.ExpMonth=6
  and cc.CardType='Vista'

答案 1 :(得分:1)

不......你可以使用表函数来代替。

答案 2 :(得分:1)

您可以加入存储过程,但您可以加入函数和视图。请注意,视图不能采用参数,并且函数可能不如CTE那样高效。

另外,查看您的查询,看起来您应该查看新的窗口函数和

之类的内容
;with cte as (
    select *, count(*) over (partition by client_id, patient_id) patientcount
    from f_accession_daily
)
select * from myTable
     inner join cte on ... and patientCount=1

可能有助于实现您的目标。