db2数据插入出现错误！！

javax.servlet.ServletException: [IBM][JDBC Driver] CLI0637E  找不到 QUERY。
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:673)
org.apache.jsp.reg3_jsp._jspService(reg3_jsp.java:171)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)


环境为：win2000 tomcat5.0 DB2V7.2.8
执行以下插入操作时，产生错误：
String sql="insert into custom(uid,pwd,nickname,realname,gender,career,email,tel,birth)values(/'"+uid+"/',/'"+pwd+"/',/'"+nickname+"/',/'"+realname+"/',/'"+gender+"/',/'"+career+"/',/'"+email+"/',/'"+tel+"/',/'"+birth+"/')";
 ResultSet rs=stmt.executeQuery(sql);