Out of memory issue when trying to connect to oracle database (VB6)

when I m trying to set Recordset using oracle connection string, I m getting OUt of memory error.

on line "rsLIS.Open sql, gConnLIS, adOpenStatic, adLockReadOnly"


here are the things which I tried :

instead of directly using recordset, I tried to create array (GetRows) method.
Even though recordset count is 26 but UBound of array is showing 1

I have trying changing 3rd argument value from static to forward only in line ""rsLIS.Open sql, gConnLIS, adOpenStatic, adLockReadOnly""
it also didn't work, it was showing recordset.count as 0

Did try after restarting the client system still same
I m getting this error on client side and since at my place I don't have development environment to debug

Error is "OUT OF MEMORY"

<pre>Public Function GetResults_New(MachName As String, patid As String, bCheckDate As Boolean, SendAssay As Boolean) As ADODB.Recordset
On Error GoTo errdesc
Call ShowTempMsg("Line 1")
Dim bXVar As Boolean
Dim i, j As Integer
Dim tmplis, tmporder
Dim tmpresult

bXVar = False

Dim rec_result As New ADODB.Recordset

Dim rsLink As New ADODB.Recordset
Dim rsLIS As New ADODB.Recordset

Dim xSampleIdType As String

gAppPath = AddEditINIfile("VAHSIF.INI", "IF", "sLinkPath", "")
xSampleIdType = AddEditINIfile(gAppPath & "\sLinkConfig.ini", MachName, "SampleIdType", "SampleId1", False)

Call Open_Connection
Call Open_Connection_LIS
rec_result.CursorLocation = adUseClient


If SendAssay = True Then
    rec_result.Fields.Append "machineparamid", adBSTR, 50
    rec_result.Fields.Append "Assayno", adBSTR, 50
    rec_result.Fields.Append "SType", adBSTR, 50
    rec_result.Fields.Append "Dilution", adBSTR, 50
Else
    rec_result.Fields.Append "machineparamid", adBSTR, 50
    rec_result.Fields.Append "SType", adBSTR, 50
    rec_result.Fields.Append "Dilution", adBSTR, 50
End If

rec_result.Open
\
'Link Query For Mapped Params.
sql = "SELECT EquipParamMapping.EquipId, EquipParamMapping.EquipParamCode, EquipParamMapping.LISParamCode, EquipParamMapping.EquipAssayNo from EquipParam, EquipParamMapping where equipParam.equipid = equipparammapping.equipid and equipparam.equipparamcode = equipparammapping.equipparamcode and EquipParam.EquipID = '" & MachName & "' and EquipParam.isProgram = 'Y'"


**rsLink.Open sql, gConn, adOpenStatic, adLockReadOnly**



If enumConnTo = connOracle Then
    sql = "select " & xSampleIdType & " , LIS_Param_Code From SL_21CI_View_sampleid_Orders where " & xSampleIdType & " || SuffixCode = '" & patid & "'  and isApplicable <> 'N'  "
Else
    sql = "select " & xSampleIdType & " , LIS_Param_Code From SL_21CI_View_sampleid_Orders where " & xSampleIdType & " + cast(SuffixCode as varchar(20)) = '" & patid & "'  and isApplicable <> 'N' "
End If

rsLIS.Open sql, gConnLIS, adOpenStatic, adLockReadOnly
 

While Not rsLIS.EOF
    
    If bXVar = True Then
        rsLink.MoveFirst
        bXVar = False
    End If
    While Not rsLink.EOF
    
        bXVar = True

  
        If rsLink.Fields(2).value = rsLIS.Fields(1).value Then
         
            If SendAssay = True Then
               
                rec_result.AddNew
        
                rec_result("machineparamid") = rsLink.Fields("EquipParamCode")
               
                rec_result("Assayno") = rsLink.Fields("EquipAssayNo")
               
                rec_result("SType") = " "
               
                rec_result("Dilution") = "0"
              
                
                rec_result.Update
               
                
                rec_result.MoveFirst
              
                
            Else
            
                rec_result.AddNew
                
                rec_result("machineparamid") = rsLink.Fields("EquipParamCode")
                rec_result("SType") = " "
                rec_result("Dilution") = "0"
                
                rec_result.Update
                
                rec_result.MoveFirst
            End If
            
            GoTo NextParam
        End If
     
        rsLink.MoveNext
    Wend
NextParam:
        rsLIS.MoveNext
Wend
    
Set GetResults_New = rec_result
    
Exit Function
errdesc:
    Call InsertIntoLogWithFileName("Transaction.GetResults_New" & vbNewLine & sql & vbNewLine & err.Description & "ErrLine : " & ErrLine)
End Function