Excel Add-In for HPCC

Build 21.0.7930

Executing Parameterized Queries

Parameterized queries can be reused and mitigate SQL injection attacks. You can execute SELECT Parameterized queries take arrays as input.

Example: Searching HPCC

The following example macro executes a parameterized search: When you run the macro, you are prompted to enter a search value.

Sub DoSelectParams()
  On Error GoTo Error
  pIndustry = InputBox("Industry:", "Get Industry")
  If pIndustry = False Then
    Exit Sub
  End If
  Dim module As New ExcelComModule
  module.SetProviderName ("HPCC")
  Cursor = Application.Cursor
  Application.Cursor = xlWait
  Dim nameArray
  nameArray = Array("IndustryParam")
  Dim valueArray
  valueArray = Array(pIndustry)
  Query = "SELECT Id, Name FROM hpcc::test::person WHERE Industry = @IndustryParam"
  module.SetConnectionString ("URL=http://127.0.0.1:8510;User=test;Password=xA123456;Version=1;Cluster=hthor;")
  If module.Select(Query, nameArray, valueArray) Then
    Dim ColumnCount As Integer
    ColumnCount = module.GetColumnCount
    For Count = 0 To ColumnCount - 1
      Application.ActiveSheet.Cells(1, Count + 1).Value = module.GetColumnName(Count)
    Next

    Dim RowIndex As Integer
    RowIndex = 2
    While (Not module.EOF)
      For columnIndex = 0 To ColumnCount - 1
        If Conversion.CInt(module.GetColumnType(columnIndex)) = Conversion.CInt(vbDate) And Not IsNull(module.GetValue(columnIndex)) Then
          Application.ActiveSheet.Cells(RowIndex, columnIndex + 1).Value = Conversion.CDate(module.GetValue(columnIndex))
        Else
          Application.ActiveSheet.Cells(RowIndex, columnIndex + 1).Value = module.GetValue(columnIndex)
        End If
      Next
      module.MoveNext
      RowIndex = RowIndex + 1
    Wend
    MsgBox "The SELECT query was successful."
  Else
    MsgBox "The SELECT query failed."
  End If
  module.Close
  Application.Cursor = Cursor
  Exit Sub
Error:
    MsgBox "ERROR: " & Err.Description
    module.Close
    Application.Cursor = Cursor
  End Sub

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Build 21.0.7930