This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I'm not that experienced with JDBC so this is only an observation, but "Message: Get operation not allowed. No current row" to me sounds like the ResultSet cursor isn't in the right place. http://java.sun.com/j2se/1.3.0/docs/api/java/sql/ResultSet.html describes all the cursor-related functions. Try moving the cursor to the beginning of the table with first() before executing the query. That's the best I can think of. Also, out of curiosity, what is the ewoNumber for and how do you use it?
You aren't showing the code that gets the exception. You've created a result set (rs) but you're probably trying to access it elsewhere. If you haven't called rs.next(), that's the problem. BTW, your executeQuery() method doesn't declare the rs variable. If you're declaring it as an instance variable in the servlet, you've got problems. Servlets are multithreaded, and if two requests occurs at or about the same time, the second one will overlay the instance variables of the first. Don't use instance variables; either keep the variables local to a method, or save them in an HttpSession object.
------------------ Phil Hanna Sun Certified Programmer for the Java 2 Platform Author of : JSP: The Complete Reference Instant Java Servlets
Phil Hanna<BR>Sun Certified Programmer for the Java 2 Platform<BR>Author of :<BR><A HREF="http://www.amazon.com/exec/obidos/ASIN/0072127686/electricporkchop/107-3548162-1137317" TARGET=_blank rel="nofollow">JSP: The Complete Reference</A><BR><A HREF="http://www.amazon.com/exec/obidos/ASIN/0072124253/electricporkchop/107-3548162-1137317" TARGET=_blank rel="nofollow">Instant Java Servlets</A>