Why no data is appearing?
Question
I am developing an ASPX web page to return results from two SQL stored procs via VB. When I execute these two stored procs, they both return valid data. But for some reason, when I run this report it doesn't return any errors, however, it doesn't return any records/data either!
Also, I can't debug it for some reason, although I can set breakpoints! This is using VS 2008, but I think reason I can't debug is I believe this is a limited version that just works for SSRS and SSIS.
Here is an excerpt of my code:
<HTML>
<SCRIPT LANGUAGE="VB" RUNAT="Server">
Sub Page_Load(Sender as Object, E as EventArgs)
If Not IsPostback Then
Dim TheMonthDate As Date = DateAdd(DateInterval.Month, -1, Today)
calStartDate.SelectedDate = CDate((TheMonthDate.Month) & "/1/" & Year(TheMonthDate)).ToString("MM/dd/yyyy")
calEndDate.SelectedDate = GlobalFunctions.GlobalF.MonthLastDate(CDate((TheMonthDate.Month) & "/1/" & Year(TheMonthDate)).ToString("MM/dd/yyyy"))
Dim arrLevel as New ArrayList()
arrLevel.Add("All")
arrLevel.Add("Inquiries")
arrLevel.Add("All Complaints")
arrLevel.Add("Elevated Complaints")
arrLevel.Add("Non-Elevated Complaints")
dLevel.DataSource = arrLevel
dLevel.DataBind()
dLevel.selectedvalue = "All Complaints"
End If
Main
End Sub
Sub Main()
'------------------------- Query database and get arrays for the chart and bind query results to datagrid ----------------------------------------
Dim FirstMonthDate as date = calStartDate.SelectedDate
Dim LastMonthDate as date = calEndDate.SelectedDate
Dim TheLevel As Integer
Dim TitleLevel as String
Select Case dLevel.SelectedValue
Case "All"
TheLevel = 5
TitleLevel = "Inquiries and Complaints"
Case "Inquiries"
TheLevel = 0
TitleLevel = "Inquiries"
Case "All Complaints"
TheLevel = 3
TitleLevel = "All Complaints"
Case "Elevated Complaints"
TheLevel = 2
TitleLevel = "Elevated Complaints"
Case "Non-Elevated Complaints"
TheLevel = 1
TitleLevel = "Non-Elevated Complaints"
End Select
Dim DSPageData as new System.Data.DataSet
DSPageData = GlobalFunctions.GlobalF.GetComplaintTrending2(FirstMonthDate, LastMonthDate, TheLevel)
...
Dim DSDetails As New System.Data.DataSet
DSDetails = GlobalFunctions.GlobalF.GetComplaintTrendingDetails2(FirstMonthDate, LastMonthDate, TheLevel)
dgTable.DataSource = DSDetails
dgTable.DataBind()
Where in my Global.vb file I have:
'Added by Ryan on 4/17/11
Public Shared Function GetComplaintTrending2(ByVal FirstMonth As DateTime, ByVal LastMonth As DateTime, ByVal rowLevel As Integer) As DataSet
Dim DSPageData As New System.Data.DataSet
Dim param(2) As SqlClient.SqlParameter
param(0) = New SqlParameter("@FirstMonthDate", SqlDbType.DateTime)
param(0).Value = FirstMonth
param(1) = New SqlParameter("@LastMonthDate", SqlDbType.DateTime)
param(1).Value = LastMonth
param(2) = New SqlParameter("@TheLevel", SqlDbType.Int)
param(2).Value = rowLevel
''# A Using block will ensure the .Dispose() method is called for these variables, even if an exception is thrown
''# This is IMPORTANT - not disposing your connections properly can result in an unrespsonsive database
Using conn As New SQLConnection(ConfigurationSettings.AppSettings("AMDMetricsDevConnectionString")), _
cmd As New SQLCommand("ComplaintTrending2", conn), _
da As New SQLDataAdapter(cmd)
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.AddRange(param)
da.Fill(DSPageData)
End Using
Return DSPageData
End Function
'Added by Ryan on 4/17/11
Public Shared Function GetComplaintTrendingDetails2(ByVal FirstMonth As DateTime, ByVal LastMonth As DateTime, ByVal rowLevel As Integer) As DataSet
Dim DSPageData As New System.Data.DataSet
Dim param(2) As SqlClient.SqlParameter
param(0) = New SqlParameter("@FirstMonthDate", SqlDbType.DateTime)
param(0).Value = FirstMonth
param(1) = New SqlParameter("@LastMonthDate", SqlDbType.DateTime)
param(1).Value = LastMonth
param(2) = New SqlParameter("@TheLevel", SqlDbType.Int)
param(2).Value = rowLevel
''# A Using block will ensure the .Dispose() method is called for these variables, even if an exception is thrown
''# This is IMPORTANT - not disposing your connections properly can result in an unrespsonsive database
Using conn As New SQLConnection(ConfigurationSettings.AppSettings("AMDMetricsDevConnectionString")), _
cmd As New SQLCommand("ComplaintTrendingDetails2", conn), _
da As New SQLDataAdapter(cmd)
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.AddRange(param)
da.Fill(DSPageData)
End Using
Return DSPageData
End Function
And these stored procs are defined as:
CREATE PROCEDURE [dbo].[ComplaintTrendingDetails2]
--DECLARE
@FirstMonthDate DATETIME,
@LastMonthDate DATETIME,
@TheLevel INT
AS
SET NOCOUNT ON;
--ComplaintTrendingDetails2 '2/1/11', '2/28/11 23:59:59', 2
--SET @FirstMonthDate = '2/1/11'
--SET @LastMonthDate = '2/28/11 23:59:59'
--SET @TheLevel = '2'
SELECT DISTINCT
A.QXP_EXCEPTION_NO, A.[LEVEL], A.pRE,
A.QXP_REPORT_DATE, A.CLOSE_DATE, A.EPA_PRD_NAME,
A.EPA_PRD_CODE, A.EPL_LOT_NUMBER,
A.QXP_SHORT_DESC, A.QXP_DESCRIPTION,
A.QXP_RESOLUTION_DESC, A.CXP_CLIENT_NAME, A.Country,
C.PRODUCT, C.PRODUCT_GROUP, C.PRODUCT_ORG_UNIT,
B.DOC_DOCUMENT_NO, A.TICKET_NUM, A.CENTER_NUM,
A.COUNTRY_CODE, A.QXP_ID, B.IRF_QEI_ID
FROM ALL_COMPLAINTS A LEFT OUTER JOIN
SMARTSOLVE.V_QXP_ISSUE_REF B ON A.QXP_ID = B.IRF_QXP_ID LEFT OUTER JOIN
MANUAL.PRODUCTS C ON A.EPA_PRD_CODE = C.LIST_NUMBER
LEFT OUTER JOIN SMARTSOLVE.V_CXP_CUSTOMER_PXP D ON A.QXP_ID = D.QXP_ID
WHERE A.QXP_REPORT_DATE >= @FirstMonthDate AND A.QXP_REPORT_DATE <= @LastMonthDate
AND (A.QXP_SHORT_DESC <> 'Design Control') AND LEVEL = @TheLevel
AND (D.QXP_EXCEPTION_TYPE <> 'Non-Diagnostic' OR D.QXP_EXCEPTION_TYPE IS NULL)
ORDER BY 4
and
--ALTER PROCEDURE [dbo].[ComplaintTrending2]
DECLARE
@FirstMonthDate DATETIME,
@LastMonthDate DATETIME,
@TheLevel INT
--AS
-- SET NOCOUNT ON;
--ComplaintTrending2 '2/1/11', '2/28/11 23:59:59', 2
SET @FirstMonthDate = '2/1/11'
SET @LastMonthDate = '2/28/11 23:59:59'
SET @TheLevel = '2'
SELECT
CASE ISNULL(PRODUCT_GROUP, '') WHEN '' THEN 'Unspecified' ELSE PRODUCT_GROUP END AS PRODUCT_GROUP,
COUNT(DISTINCT A.QXP_EXCEPTION_NO) AS CountOfTickets
FROM ALL_COMPLAINTS a
LEFT OUTER JOIN MANUAL.PRODUCTS b ON a.EPA_PRD_CODE = b.LIST_NUMBER
LEFT OUTER JOIN SMARTSOLVE.V_CXP_CUSTOMER_PXP c ON a.QXP_ID = c.QXP_ID
WHERE a.QXP_REPORT_DATE >= @FirstMonthDate AND a.QXP_REPORT_DATE <= @LastMonthDate
AND (a.QXP_SHORT_DESC <> 'Design Control') AND LEVEL = @TheLevel
AND (c.QXP_EXCEPTION_TYPE <> 'Non-Diagnostic' OR c.QXP_EXCEPTION_TYPE IS NULL)
GROUP BY PRODUCT_GROUP
ORDER BY COUNT(DISTINCT a.QXP_EXCEPTION_NO) DESC
Could the problem be due to the fact that this web page uses the same SQL connection for both stored procs? The first proc should be returned initially, and the second proc after this screen. So I don't need both stored procs information simultaneously, so I would think I could reuse the same SQL connection.
OK, I found where the problem is located. If I just comment out the Level statement in the Where clause, it does return data. So only thing I changed was that one line in my SQL code and it works. This means missing data must be due to datatype incompatibility, no? What is the problem?
1 answers
solution1
0 2011-04-17 16:59:42
I think the problem is your code does not even compile. Looking at the posted page right at the start we see this:
End If
Main
End Sub
This is not valid VB. You are running an old version of your code. This is also why you can't debug it. You don't have the current one to set break points on.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.