Called to stored procedure through VB.net application not working
I have a VB.Net application that calls the database stored procedure and it supposedly suppose to look for tasks in a table with the Status of "Wait" and then updates it to executing and then generates the report.
However, I have ran the step in Visual Studio but it seems it doesn't to run the store procedure or run the stored procedure with no result .
I have individually ran the stored procedure through SQL Developer to check it and it works, so I don't think it's the problem.
I find that the rsresult
never has rows so I am wondering do I need to add another line of code after ExecuteReader
?
Can you all please help?
Below is the function and stored procedure
Public Function SelectGetTasktoExec(ByVal plngCount As Integer, ByVal
pstrIPAddr As String, ByRef pdicResult As Dictionary) As Boolean
Dim result As Boolean = False
Dim blnResult As Boolean
Dim strCaller As String = ""
Dim strErrMsg As String = ""
Dim lngRet As Integer
Dim rsResult As OracleDataReader = Nothing
Dim dicItem As Dictionary
Dim intIndex As Integer
Try
m_TranObj.CreateSPCaller("PKG_TD_BATCH_REPORT.SELECT_REPRINT_TASK")
m_TranObj.AddSPParams("i_task_count", OracleDbType.Decimal, 10, plngCount, ParameterDirection.Input)
m_TranObj.AddSPParams("i_ipaddr", OracleDbType.Varchar2, 16, pstrIPAddr, ParameterDirection.Input)
m_TranObj.AddSPParams("ocs_name", OracleDbType.RefCursor, 20, Nothing, ParameterDirection.Output)
m_TranObj.AddSPParams("o_err_code", OracleDbType.Decimal, 20, lngRet, ParameterDirection.Output)
If Not m_TranObj.RunSPReturnRS(lngRet, "o_err_code", rsResult) Then
strErrMsg = "call Pkg_Td_Batch_Report.SELECT_REPRINT_TASK failed."
Throw New Exception()
End If
If lngRet <> 0 Then
strErrMsg = "Call Pkg_Td_Batch_Report.SELECT_REPRINT_TASK failed,Error code:" & CStr(lngRet)
Throw New Exception()
End If
intIndex = gc_DicFirstKey
rsResult.Read()
While rsResult.HasRows()
dicItem = New Dictionary
dicItem.Add(gc_KEY_TASK_NO, rsResult("TASK_NO") & "")
dicItem.Add(gc_KEY_QUEUE_NO, rsResult("QUEUE_NO") & "")
dicItem.Add(gc_KEY_START_DATE, rsResult("START_DATE") & "")
dicItem.Add(gc_KEY_END_DATE, rsResult("END_DATE") & "")
dicItem.Add(gc_KEY_STORAGE_PATH, rsResult("STORAGE_PATH") & "")
dicItem.Add(gc_KEY_DATA_SOURCE, rsResult("DATA_SOURCE") & "")
dicItem.Add(gc_KEY_TEMPLATE_NAME, rsResult("TEMPLATE_NAME") & "")
dicItem.Add(gc_KEY_SOFT_COPY_FORMATS, rsResult("SOFT_COPY_FORMATS") & "")
dicItem.Add(gc_KEY_SCHEDULED_EXECUTE_DATE, rsResult("SCHEDULED_EXECUTE_DATE") & "")
dicItem.Add(gc_KEY_HARD_DISTRIBUTION_IND, rsResult("PRINT_IND") & "")
dicItem.Add(gc_KEY_SOFT_DISTRIBUTION_IND, rsResult("EXPORT_IND") & "")
dicItem.Add(gc_KEY_RESULT_PATH, rsResult("RESULT_PATH") & "")
dicItem.Add(gc_KEY_PRINTER_NAME, rsResult("PRINTER_NAME") & "")
dicItem.Add(gc_KEY_TRACTOR_NO, rsResult("TRACTOR_NO") & "")
dicItem.Add(gc_KEY_TEMPLATE_NO, rsResult("TEMPLATE_NO") & "")
dicItem.Add(gc_KEY_DUPLEX_PRINT_IND, rsResult("DUPLEX_PRINT_IND") & "")
dicItem.Add(gc_KEY_DESCRIPTION, rsResult("DESCRIPTION") & "")
dicItem.Add(gc_KEY_DEPT_DIVISION_CODE, rsResult("DEPT_DIVISION_CODE") & "")
dicItem.Add(gc_KEY_SYSDATE, Strings.Format(rsResult("SYSDATE"), gc_FormatDateTime) & "")
dicItem.Add(gc_KEY_FROM_PAGE, rsResult("FROM_PAGE") & "")
dicItem.Add(gc_KEY_TO_PAGE, rsResult("TO_PAGE") & "")
'add end
pdicResult.Add(intIndex, dicItem)
intIndex += 1
End While
SBL_Error.DebugLog(strCaller, "End")
blnResult = True
Catch excep As System.Exception
blnResult = False
SBL_Error.ErrorLog(strCaller, strErrMsg & excep.ToString)
Throw excep
Finally
result = blnResult
End Try
Return result
End Function
Here is the RunSPReturnRS method:
Public Function RunSPReturnRS(ByRef plngCnt As Integer, ByVal pstrReturnName
As String, ByRef prsResult As Object) As Boolean
Dim result As Boolean = False
Dim blnResult As Boolean
Dim strCaller As String = ""
Dim strErrMsg As String = ""
Dim strMsg As String = ""
Dim rsresult As String = ""
Try
If Not mblnConnected Then
If Not Connect() Then
strErrMsg = "Can not open connection!"
End If
End If
prsResult = mCmd.ExecuteReader()
If prsResult.HasRows Then
prsResult.Read()
prsResult = prsResult(0).ToString()
strMsg = "Batch Date is" + Space(1) + prsResult
Else
prsResult = prsResult
End If
If pstrReturnName Is "" Then
plngCnt = mCmd.Parameters(pstrReturnName).Value
End If
mCmd.Dispose()
SBL_Error.DebugLog(strCaller, strMsg)
blnResult = True
Catch ex As Exception
SBL_Error.ErrorLog(strCaller, ex.ToString())
blnResult = False
Finally
result = blnResult
End Try
Return result
There's little to go on here... but... if the stored procedure only returns a single row then you'd never see the result.
You need the rsResult.Read
within the While loop:
While rsResult.HasRows
rsResult.Read
' do your processing...
End While
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