从sql存储过程返回多个值
我试图将4个变量从存储过程返回到ASP.NETVB脚本中的页面。它只是返回第一个结果,然后打破。我对SQL的知识有限。我尝试了以下方法: SQL: ASP.NET从sql存储过程返回多个值,sql,asp.net,vb.net,stored-procedures,Sql,Asp.net,Vb.net,Stored Procedures,我试图将4个变量从存储过程返回到ASP.NETVB脚本中的页面。它只是返回第一个结果,然后打破。我对SQL的知识有限。我尝试了以下方法: SQL: ASP.NET Function RequestsSent() Dim objCmd2 As sqlCommand Dim objRdr2 As sqlDataReader objCmd2 = New SqlCommand("spDashboardPaymentRequests", objConn) objCmd2.C
Function RequestsSent()
Dim objCmd2 As sqlCommand
Dim objRdr2 As sqlDataReader
objCmd2 = New SqlCommand("spDashboardPaymentRequests", objConn)
objCmd2.CommandType = CommandType.StoredProcedure
objCmd2.Parameters.AddWithValue("@orgid", Session("orgid"))
objConn.Open()
objRdr2 = objCmd2.ExecuteReader
objRdr2.Read()
Session("RequestsSent") = objRdr2("requestsSent")
Session("RequestsTotal") = objRdr2("requestTotal")
Session("RequestsTotalPaid") = objRdr2("requestTotalPaid")
Session("RequestsTotalUnpaid") = objRdr2("requestTotalUnpaid")
objConn.Close()
End Function
我不知道asp,但您可能知道,因此这里有一个查询,可以将所有asp作为同一行,相应地调整您的asp代码:
SELECT COUNT(Receiptno) as requestsSent,
(SELECT Sum(totamount)
FROM [demofee].[dbo].[vwallrequests]
Where Orgid = @id) as requestTotal,
--Query 3,
--Query 4
FROM [demofeepay3].[dbo].[vwallrequests]
Where Orgid = @id
您有多个
select
s,这意味着有多个结果集。所以你必须通过它们:
objRdr2.Read()
Session("RequestsSent") = objRdr2("requestsSent")
objRdr2.NextResult()
objRdr2.Read()
Session("RequestsTotal") = objRdr2("requestTotal")
objRdr2.NextResult()
objRdr2.Read()
Session("RequestsTotalPaid") = objRdr2("requestTotalPaid")
objRdr2.NextResult()
objRdr2.Read()
Session("RequestsTotalUnpaid") = objRdr2("requestTotalUnpaid")
或者,您可以更改存储过程以返回一个包含多列的结果集:
Alter PROCEDURE [dbo].[spDashboardPaymentRequests]
@id integer
AS
SELECT
(SELECT COUNT(Receiptno) FROM [demofeepay3].[dbo].[vwallrequests] Where Orgid = @id)
as requestsSent,
(SELECT Sum(totamount) FROM [demofee].[dbo].[vwallrequests] Where Orgid = @id)
as requestTotal,
(SELECT Sum(totamount) FROM [demofee].[dbo].[vwallrequests] Where Orgid = @id AND status = 'paid')
as requestTotalPaid,
(SELECT Sum(totamount) FROM [demo].[dbo].[vwallrequests] Where Orgid = @id AND status = 'unpaid')
as requestTotalUnpaid
干杯,伙计,我会试试这个,并让你知道:-)不是一个函数,而是一个方法,你不会返回任何东西。为您的方向声明一些输出参数并在SQL中设置它们。。。此外,sql可以简化为1条语句。
Alter PROCEDURE [dbo].[spDashboardPaymentRequests]
@id integer
AS
SELECT
(SELECT COUNT(Receiptno) FROM [demofeepay3].[dbo].[vwallrequests] Where Orgid = @id)
as requestsSent,
(SELECT Sum(totamount) FROM [demofee].[dbo].[vwallrequests] Where Orgid = @id)
as requestTotal,
(SELECT Sum(totamount) FROM [demofee].[dbo].[vwallrequests] Where Orgid = @id AND status = 'paid')
as requestTotalPaid,
(SELECT Sum(totamount) FROM [demo].[dbo].[vwallrequests] Where Orgid = @id AND status = 'unpaid')
as requestTotalUnpaid