如何在视图中调用存储过程？

Question

我的存储过程没有参数。运行如下：-

EXEC sp_Email_spd_CasualNotification

Returns一个table:-

DeptChangeID| oldDeptID |DeptID | JobID |EmpID
33419       | NULL      | 679   | 3742  |16575
42392       | NULL      | 783   | 4742  |100000378

我想在视图中查看此 table。我就是找不到办法。我的意思是

CREATE View [dbo].[vw_EmploymentLatest] as  
Select * from (EXEC sp_Email_spd_CasualNotification)

这是不可能的。

我的存储过程简化如下：-

declare @empTable table (employeeID int)
declare @selectedDeptChangeIDTable table (deptChangeID int)
declare @rowCount int
declare @rowNum int
declare @selectedDeptChangeID int
declare @empID int

Insert into @empTable (employeeID)
SELECT DISTINCT
E.Employee_ID
FROM Employee E
'
'

WHILE exists (select * from @empTable)
BEGIN    
SELECT @empID = (select top 1 employeeID from @empTable order by employeeID asc)

'
'

WHILE @rowNum <= @rowCount
BEGIN
declare @p1 int
declare @p2 int
'
'
'
'
DELETE @empTable WHERE employeeID = @empID 
END

Select * from Employment Where DeptChangeID in (Select deptChangeID from @selectedDeptChangeIDTable)

Answer 1

CREATE PROCEDURE dbo.Test
AS
    SELECT * FROM sys.tables
GO

EXEC dbo.Test

更新：用于视图（为什么？可以通过 table/inline 函数？）

添加链接服务器（本地）

EXECUTE sp_addlinkedserver @server = N'LinkedServer', @srvproduct = N'sqlserver', @provider = N'SQLNCLI', @datasrc = N'LinkedServer.domain';

并尝试

CREATE VIEW dbo.vw
AS
SELECT * 
FROM       OPENQUERY(LinkedServer, 'EXEC [YOURDB].dbo.Test') AS a
GO

SELECT * FROM dbo.vw

Answer 2

您的过程应包含关于您要查询的 table(s) 的 SELECT 语句。

示例：

SELECT * FROM myTable

然后你调用你的程序：

EXEC sp_Email_spd_CasualNotification

如果您的程序没有对 table 进行任何更改，为什么不考虑使用 FUNCTION？

注意：sp_ 前缀是为系统存储过程保留的，所以我会更改名称。

Answer 3

存储过程不适用于视图（或函数）内。您必须在视图或函数上编写查询。

让我们假设这个存储过程：

CREATE PROCEDURE dbo.Test
AS
    SELECT * FROM sys.tables
GO

EXEC dbo.Test

它可以转换成一个 table 值的函数，像这样：

CREATE FUNCTION dbo.Test
RETURNS TABLE AS
RETURN (
  SELECT * FROM sys.tables
)
GO

SELECT * FROM dbo.Test()

如果您愿意，现在可以在视图中使用它。

这是更简单的语法（内联函数），但对于任何复杂的存储过程，您都需要将其转换为多语句 table 值函数。

CREATE FUNCTION dbo.Test
RETURNS @Test TABLE (object_id int, name varchar(100)) 
AS
BEGIN
  INSERT INTO @Test (object_id, name)
         SELECT object_id, name FROM sys.tables
END
GO

SELECT * FROM dbo.Test()

查看您提供的代码，您的函数应该是这样的：

CREATE FUNCTION dbo.Email_spd_CasualNotification
RETURNS @CasualNotification TABLE (DeptChangeID int, oldDeptID int, DeptID int, JobID int, EmpID int) 
AS
BEGIN
  declare @empTable table (employeeID int)
  declare @selectedDeptChangeIDTable table (deptChangeID int)
  declare @rowCount int
  declare @rowNum int
  declare @selectedDeptChangeID int
  declare @empID int

  Insert into @empTable (employeeID)
         SELECT DISTINCT
         E.Employee_ID
         FROM Employee E
         '
         '

  WHILE exists (select * from @empTable)
  BEGIN    
    SELECT @empID = (select top 1 employeeID from @empTable order by employeeID asc)

    '
    '

    WHILE @rowNum <= @rowCount
    BEGIN
      declare @p1 int
      declare @p2 int
      '
      '
      '
      '
      DELETE @empTable WHERE employeeID = @empID 
    END
  END  

  insert into @CasualNotification(DeptChangeID, oldDeptID, DeptID, JobID, EmpID)
         Select DeptChangeID, oldDeptID, DeptID, JobID, EmpID 
         from Employment 
         Where DeptChangeID in (Select deptChangeID from @selectedDeptChangeIDTable)
END

如何在视图中调用存储过程？

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