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Saving QueryDataSet Result to the File ....

I am trying to save QueryDataSet result to file, by reading data column by column and row by row, but as I do not know the data type of column how to save data to the file.

Thanks & Regards,
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smartvanl5
Asked:
smartvanl5
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2 Solutions
 
RuadRauFlessaCommented:
Try retrieving the Metadata of the data set if there is any.
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smartvanl5Author Commented:
How to get the DataType of the Column.
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TimYatesCommented:
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smartvanl5Author Commented:
I still unable to solve my problem, As I am new in JAVA.

I am requesting you Send me code which SAVE QueryDataSet result in the file.

Please ...
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CEHJCommented:
Most columns will come out properly, without knowing the type:

PrintWriter out = new PrintWriter(new FileWriter("results.txt"));
while (resultSet.hasNext()) {
      out.print(resultSet.getObject("col1"));
      out.print(resultSet.getObject("col2"));
      out.print(resultSet.getObject("col3"));
      out.println();
}
resultSet.close();
out.close();
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TimYatesCommented:
> I am requesting you Send me code which SAVE QueryDataSet result in the file.

What code do you have already?  Any of it?
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smartvanl5Author Commented:
   try {
      QueryDataSet DashBoard = new QueryDataSet();
      WorkbookSettings ws = new WorkbookSettings();
      ws.setLocale(new Locale("en", "EN"));
      workbook = Workbook.createWorkbook(new File("c:/igmoutput/query.xls"), ws);
      WritableSheet sheet = workbook.createSheet("Result", 0);
      //Label label = new Label(Column, Row, "A lable record");
      int iCurrentColumn = 0;
      int iCurrentRow = 0;
      while (DashBoard.columnCount() > iCurrentColumn) {
        Label label = new Label(iCurrentColumn, iCurrentRow, DashBoard.getString(0));
        sheet.addCell(label);
        iCurrentColumn = iCurrentColumn + 1;
      }
      iCurrentRow = iCurrentRow + 1;
      while (DashBoard.inBounds()) {
        iCurrentColumn = 0;
        while (DashBoard.columnCount() > iCurrentColumn) {
          Label label = new Label(iCurrentColumn, iCurrentRow, DashBoard.getString(0));
          sheet.addCell(label);
          iCurrentColumn = iCurrentColumn + 1;
        }
        DashBoard.next();
        iCurrentRow = iCurrentRow + 1;
      }
      workbook.write();
      workbook.close();
    } catch (Throwable t) {
      System.out.println(t.toString());
      t.printStackTrace();
    }


Label label = new Label(iCurrentColumn, iCurrentRow, DashBoard.getString(0));

As I am getting the column data, I do not know column data type.

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CEHJCommented:
smartvanl5, do you see what's happened here? Everyone has assumed you're talking about the Java API, but you're not - you're talking about some proprietary API. Unless you have a very good reason for using this, it would be better if you don't, as you'll find it much easier to get support and your code will be much more portable (as well as your accumulated knowledge).

I haven't even been able to find the docs online for QueryDataSet.
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smartvanl5Author Commented:
Sorry for inconviance,

I am using JBuilder8 for development so QueryDataSet is part of it.
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CEHJCommented:
Well, the question can probably only be answered by fellow JBuilder users then i'm afraid since the docs for that class don't seem to be publicly available
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TimYatesCommented:
getColumn( int pos ).getSqlType()

should do it...
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CEHJCommented:
Despite the fact this is not a normal ResultSet, my earlier comment about it not being necessary to know the type will probably still hold
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TimYatesCommented:
Yeah, it does :-)  (I think)...  you can call "getObject", but I have no way of knowing what the response is, as I have never used this class in my life...  I'm a JDBC man myself ;-)
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