Database operations

Question

how can i insert or update or delete multiple rows from multiple tables ?

Answer 1

To erase multiple rows in a table, you can simply do the following:
com.sun.sql.rowset.CachedRowSetXImpl pkRowSet = new com.sun.sql.rowset.CachedRowSetXImpl();
try {
pkRowSet.setDataSourceName("java:comp/env/jdbc/express");
pkRowSet.setCommand("delete from cart where cart_id = " + cartid);
pkRowSet.execute();
pkRowSet.commit();
}catch(Exception e) {
error("Error fetching Max(cart_id)+1 : " + e.getMessage());
}finally {
pkRowSet.close();
This code is the action event of a button and it receives the parameter cartid which is the one that it will delete from the table, now, you can customize the sql query so that it deletes as many rows as you wish. If you want to do the same thing with more tables, you can create a function and send the name of the tables as parameters.
I hope it helps !!
Yesenia.