code: def getColumns(TableName,ParameterNames):
      
      Columns = []
      for par_name in ParameterNames:
          Columns.append(LOCAL_TABLE_CACHE[TableName]['data'][par_name])
      return Columns
docs: INPUT PARAMETERS: 
          TableName:       source table name           (required)
          ParameterNames:  list of column names to get (required)
      OUTPUT PARAMETERS: 
          ListColumnData:   tuple of lists of values from specified column 
      ---
      DESCRIPTION:
          Returns columns with a names in ParameterNames from
          table TableName. Columns are returned as a tuple of lists.
      ---
      EXAMPLE OF USAGE:
          p1,p2,p3 = getColumns('sampletab',('p1','p2','p3'))
      ---