How to Store resultset in .xls or .csv format

How we can store a resultset in .xls or .csv format, When we don't know the colum names,or no. of columns in the result set, or you want to generlize the code.
Each time for every query execution.getting the field from the resultset and appending ',' to it, and storing it in file is doing the work as i want to do.
I want to use it as to take backup of any table from database server to my system
if any other rather thn xls or csv by that i can reload it easily if required.
Pleae help

There are lots of ways to do this via tools or rolling your own. I use the FormattedDataSet API for this.
import com.fdsapi.*;
FormattedDataSet fds=new FormattedDataSet();
String csv=null;
csv=fds.getFormattedDataSet("select * from table", "csv");
// or
csv=fds.getFormattedDataSet(resultSet.getMetaData(), resultSet, "csv");Here is a link to a live demo that allows you to format in html/xml/csv. Although the example on this page formats form submissions the code would work for ResultSets too.
http://ssouza.kgbinternet.com/fdsapi/basicdemo.jsp
steve - http://www.fdsapi.com

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    I know there is a standard Save As dialogue automatically launched by the browser. But my problem is: I don't need such a pumped-up Save As... dialogue which most brower will provide, because our system will have an interface which will provide the same function as the Save As guy. And this is the part that I am currently working on. Our interface will permit the client to browse their file system and then provide a filename, and then click OK to save the file. PLEASE, anybody who can help me. I know there are guys there have answers for my questions:
    1. In my JSP program, I save the resultset I get from the database as a string, and then this string should be sent through inputstream and outputstream and be saved as a text file onto the client's local machine. I know there's a lot file download topics but I am dealing with a string instead of a file, is there an inputstream accepting a string(which contains dataresultset) and output it to a file?
    2. As I already said, how to make my own Save As... dialogue?
    I really need help! I have been bothered by them for a long time. Thanks in advance!

    Well, it's hard to interpret exactly what you want to do but I'll take a stab.
    I would put the data into comma separated value (CSV) format and then stream it back to the browser using the "application/csv" content format.
    By doing this, they can either save it to their hard drive into the directory of their choice, or open it using whatever mapping they have for the CSV mime type. For most Windows machines, this is Excel (if it's loaded).

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