Performance Form based on procedure vs based on table/view

When we design our form, and want to optimize the performance, we came to a question. Will the performance of a form based on a procedure is better or a form based on a table/view is better? And why is it better? or worse?

Hello,
For me, the question is not "is the stored procedure based block is faster than table based block ?", but "do i use the DML array functionality with table based block?"
If you do not use DML array functionality, then you generate as many roundtrips as you get raws in your block.
With stored procedure based block, you transmit a pl/sql table of record to the procedure.
Anyway, you could do some tests to compare the 2 solutions.
Francois

Similar Messages

Performing form based authentication with entities

Hey everyone,
Im in a major dilemma.Im trying to perform form-based authentication using entities.I have created the entity class from the database,and I used a SLSB to access the bean method via JNDI(when I tried using dependency injection,there was an exception).I also cannot use hibernate as a persistent provider.I used toplink since it is the default in netbeans 5.5.1 and it did not raise any issues.But then,I noticed that toplink is most compatible with the oracle application server,and I use sun java system application server 9.1.I have not been able to successfully perform the authentication.
here's the code:note,there are still bugs as ive been going back and forth trying to find a solution and also because Ive been working with preexisting code.
model:
SLSB
* userValidationBean.java
* Created on 26 March 2008, 18:25
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package Entities;
import javax.ejb.Stateless;
import javax.ejb.Remote;
import java.util.List;
import javax.persistence.PersistenceContext;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import Entities.UserTable;
import javax.transaction.UserTransaction;
import javax.annotation.Resource;
//the reason for the many comments is that im still debugging and there are still some bugs.Ive also been trying to go back and forth just
//to get a solution.
//the other accompanying classes had preexisting code i wrote earlier.
* @author Ayo
@Stateless
@Remote(userValidationRemote.class)
public class userValidationBean implements Entities.userValidationRemote {
@PersistenceContext private EntityManager manager;
@Resource private javax.transaction.UserTransaction tran;
/** Creates a new instance of userValidationBean */
public userValidationBean() {
//"SELECT u.username,u.password FROM UserTable u WHERE u.username =?1 and u.password=?2"
public boolean checkUser()
try
tran.begin();
UserTable user=new UserTable();
Query query=manager.createQuery("select u.username,u.password from u.user_table where u.username=:username and u.password=:password");
/*query.set("username",user.getUsername());
query.setParameter("password",user.getPassword());*/
query.setParameter("username",user.getUsername());
query.setParameter("password",user.getPassword());
userValidationBean ubean=(userValidationBean)query.getSingleResult();
boolean result=ubean==null?true:false;
tran.commit();
catch(Exception e)
System.out.println("Error:"+e);
// boolean result=ubean==null?true:false;
return result;
remote interface
package Entities;
import javax.ejb.Remote;
import Entities.UserTable;
* This is the business interface for userValidation enterprise bean.
@Remote
public interface userValidationRemote {
public boolean checkUser();
controller:servlet
* userCheck.java
* Created on 15 March 2008, 22:41
package servlets;
import Entities.UserTable;
import Entities.userValidationBean;
import javax.annotation.*;
import Entities.userValidationRemote;
import java.io.*;
import java.net.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.ejb.*;
import javax.naming.*;
import javax.persistence.*;
* @author Ayo
* @version
public class userCheck extends HttpServlet {
//@EJB userValidationRemote userRemote;
boolean checkUser;
String username,password;
/** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
/*con=null;
ps=null;
rs=null;
s=null;
*/response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
username=request.getParameter("username");
password=request.getParameter("password");
if(username==""||password=="")
//RequestDispatcher de=request.getRequestDispatcher("admin_error.jsp");
//de.forward(request,response);
//showError("<b><font color=\"red\">Invalid Login details!</font></b>",request,response);
showError("<b><font color=\"red\">Please fill in the required blanks.</font></b>",request,response);
else
try
Context ctx=new InitialContext();
userValidationRemote userRemote=(userValidationRemote)ctx.lookup("Entities.userValidationRemote");
checkUser= userRemote.checkUser();
//checkUser= userRemote.checkUser();
//return;
//checkUser(UserTable user);
catch(Exception e)
out.println("Error:"+e);
//userValidation.checkUser(UserTable user);
if(checkUser==true)
RequestDispatcher d=request.getRequestDispatcher("blah.jsp");
d.forward(request,response);
else if(checkUser==false)
// RequestDispatcher d=request.getRequestDispatcher("admin_error.jsp");
//d.forward(request,response);
showError("<b><font color=\"red\">Invalid Login details!</font></b>",request,response);
//call bean(stateless or stateful)which access method on entity that validates.
// checkUser(request,response);
/* TODO output your page here
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet userCheck</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet userCheck at " + request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
//out.close();
/* public synchronized void checkUser(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
if(username==""&&password=="")
showError("<b><font color=\"red\">Please fill in the required blanks.</font></b>",request,response);
else
try
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select username,password from user_table where username=?and password=?");
ps.setString(1,username);
ps.setString(2,password);
rs=ps.executeQuery();
if(rs.next())
user=rs.getString(1);
pass=rs.getString(2);
//check user type,wether super admin,user or the other subadmins or a regular user.
checkType(request,response);
else
//redirect to admin error page,then close the connection.
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
con.close();
catch(Exception e)
private synchronized void checkType(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
try
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select user_type,user_id,access_level from user_table where username=? and password=?");
ps.setString(1,user);
ps.setString(2,pass);
rs=ps.executeQuery();
if(rs.next())
user_type=rs.getString(1);
user_id=""+rs.getInt(2);
access_level=rs.getString(3);
if(user_type.equals("super")&&(access_level.equals("all")))
//create admin user session,add to the username and the user_id.
//redirect to super admin page,with access rights to create
//health admin,insurance admin and HMO admin.
//pretty cool stuff!
HttpSession session=request.getSession(true);
session.setAttribute("user",user);
session.setAttribute("user_id",user_id);
RequestDispatcher dispatcher=request.getRequestDispatcher("admin_user_page.jsp");
dispatcher.forward(request,response);
//session.setAttribute(user_id);
//remember to create a hidden field if you need to pass this information
//to another page and retrieve the super admin id to track his activities.
else if(user_type.equals("health administrator")&&(access_level.equals("Health")))
HttpSession session=request.getSession(true);
session.setAttribute("user",user);
session.setAttribute("user_id",user_id);
RequestDispatcher des=request.getRequestDispatcher("health_admin_user_page.jsp");
des.forward(request,response);
//check for other user types,health admin,hmo admin and insurance admin.
else if(user_type.equals("hmo administrator")&&(access_level.equals("HMO")))
HttpSession session=request.getSession(true);
session.setAttribute("user",user);
session.setAttribute("user_id",user_id);
RequestDispatcher d=request.getRequestDispatcher("hmo_admin_user_page.jsp");
d.forward(request,response);
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
else if(user_type.equals("insurance administrator")&&(access_level.equals("insurance")))
HttpSession session=request.getSession(true);
session.setAttribute("user",user);
session.setAttribute("user_id",user_id);
RequestDispatcher de=request.getRequestDispatcher("insurance_admin_user_page.jsp");
de.forward(request,response);
else if(user_type.equals("user")&&(access_level.equals("health")))
try
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql:http://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select staff_id from user_table where username=?and password=?");
ps.setString(1,username);
ps.setString(2,password);
rs=ps.executeQuery();
if(rs.next())
String staff_id=""+rs.getInt(1);
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select * from health_staff_table where staff_id=?");
ps.setString(1,staff_id);
rs=ps.executeQuery();
if(rs.next())
//retrieve the values from health staff and store them in variables.
//store important variables in user sessions e.g.staff_id,username,place of work for display in the web page.
//redirect to required page.
String first_name=rs.getString("first_name");
String last_name=rs.getString("last_name");
String work_place=rs.getString("place_of_work");
HttpSession session=request.getSession(true);
session.setAttribute("first_name",first_name);
session.setAttribute("last_name",last_name);
session.setAttribute("work_place",work_place);
session.setAttribute("staff_id",staff_id);
//redirect to user page.
else
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
else
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
catch(Exception e)
//catch exception and redirect to page.
else if(user_type.equals("user")&&(access_level.equals("HMO")))
try
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql:http://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select staff_id from user_table where username=?and password=?");
ps.setString(1,username);
ps.setString(2,password);
rs=ps.executeQuery();
if(rs.next())
String staff_id=""+rs.getInt(1);
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select * from hmo_staff_table where staff_id=?");
ps.setString(1,staff_id);
rs=ps.executeQuery();
if(rs.next())
//retrieve the values from HMO staff and store them in variables.
//store important variables in user sessions e.g.staff_id,username,place of work for display in the web page.
//redirect to required page.
String first_name=rs.getString("first_name");
String last_name=rs.getString("last_name");
String work_place=rs.getString("place_of_work");
HttpSession session=request.getSession(true);
session.setAttribute("first_name",first_name);
session.setAttribute("last_name",last_name);
session.setAttribute("work_place",work_place);
session.setAttribute("staff_id",staff_id);
else
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
else
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
catch(Exception e)
//catch exception and redirect to page.
else if(user_type.equals("user")&&(access_level.equals("insurance")))
try
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql:http://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select staff_id from user_table where username=?and password=?");
ps.setString(1,username);
ps.setString(2,password);
rs=ps.executeQuery();
if(rs.next())
String staff_id=""+rs.getInt(1);
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/Health_Management_System","root","");
ps=con.prepareStatement("select * from insurance_staff_table where staff_id=?");
ps.setString(1,staff_id);
rs=ps.executeQuery();
if(rs.next())
//retrieve the values from insurance staff and store them in variables.
//store important variables in user sessions e.g.staff_id,username,place of work for display in the web page.
//redirect to required page.
String first_name=rs.getString("first_name");
String last_name=rs.getString("last_name");
String work_place=rs.getString("place_of_work");
HttpSession session=request.getSession(true);
session.setAttribute("first_name",first_name);
session.setAttribute("last_name",last_name);
session.setAttribute("work_place",work_place);
session.setAttribute("staff_id",staff_id);
else
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
else
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
catch(Exception e)
//catch exception and redirect to page.
else
//invalid login details.After all else fails.
showError("<b><font color=\"red\">Invalid Login details.</font></b>",request,response);
catch(Exception e)
private void showError(String errorMsg,HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
request.setAttribute("error_msg",errorMsg);
RequestDispatcher dispatcher=request.getRequestDispatcher("admin_error.jsp");
dispatcher.forward(request,response);
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/** Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
/** Returns a short description of the servlet.
public String getServletInfo() {
return "Short description";
// </editor-fold>
view
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Login</title>
<style type="text/css">

</style>
</head>
<body>
<table width="564" border="0" align="center">
<tr>
<td width="558" bgcolor="#CCCCCC" class="style1"><div align="center">
<p> </p>
<h1 class="style7">Welcome to HealthPort</h1>
<p>HealthPort Login</p>
<p><span class="style8">Today's date is:<%= new java.util.Date() %></span></p>
<form id="form1" name="form1" method="post" action="userCheck">
<p align="right" class="style3">Username
<label></label>
<input type="text" name="username" id="username" />
</p>
<p align="right" class="style3">Password
<input type="password" name="password" id="password" />
</p>
<p align="right" class="style3">
<span class="style6">
<label></label>
<label></label>
</span>
<span class="style5">
<label></label>
</span>
<label>
<input type="submit" name="button" id="button" value="Login" />
</label>
</p>
<div align="right">
</div></form>
<div align="right"><div align="left"><p align="right"> </p>
</div></div></div></td>
</tr>
<tr>
<td bgcolor="#CCCCCC" class="style1"> </td>
</tr>
</table>
</body>
</html>
so,that's about it.I'd appreciate it.I know this is a lot.I'm grateful
Ayo.

Hi.Im still having issues trying to perform form based authenticatin with entities.I tried this method but im getting errors on the marked lines.
controller servlet
* userCheck.java
* Created on 15 March 2008, 22:41
package servlets;
import Entities.UserTable;
import Entities.userValidationBean;
import javax.annotation.*;
import Entities.userValidationRemote;
import java.io.*;
import java.net.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.ejb.*;
import javax.naming.*;
import javax.persistence.*;
* @author Ayo
* @version
public class userCheck extends HttpServlet {
//@EJB userValidationRemote userRemote;
boolean checkUser;
String username,password;
/** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
/*con=null;
ps=null;
rs=null;
s=null;
*/response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
username=request.getParameter("username");
password=request.getParameter("password");
if(username==""||password=="")
showError("<b><font color=\"red\">Please fill in the required blanks.</font></b>",request,response);
else
try
Context ctx=new InitialContext();
userValidationRemote userRemote=(userValidationRemote)ctx.lookup("Entities.userValidationRemote");
(error on this line-saying ')' expected and no matter if i add ) there is still erro)userRemote.authenticate(String p_user,String p_password);
catch(Exception e)
out.println("Error:"+e);
if(checkUser==true)
RequestDispatcher d=request.getRequestDispatcher("blah.jsp");
d.forward(request,response);
else if(checkUser==false)
showError("<b><font color=\"red\">Invalid Login details!</font></b>",request,response);
private void showError(String errorMsg,HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException
request.setAttribute("error_msg",errorMsg);
RequestDispatcher dispatcher=request.getRequestDispatcher("admin_error.jsp");
dispatcher.forward(request,response);
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/** Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
/** Returns a short description of the servlet.
public String getServletInfo() {
return "Short description";
// </editor-fold>
view
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Login</title>
<style type="text/css">

</style>
</head>
<body>
<table width="564" border="0" align="center">
<tr>
<td width="558" bgcolor="#9DACBF" class="style1"><div align="center">
<p> </p>
<h1 class="style7">Welcome to HealthPort</h1>
<p>HealthPort Login</p>
<p><span class="style8">Today's date is:<%= new java.util.Date() %></span></p>
<form id="form1" name="form1" method="post" action="userCheck">
<p align="right" class="style3">Username
<label></label>
<input type="text" name="username" id="username" />
</p>
<p align="right" class="style3">Password
<input type="password" name="password" id="password" />
</p>
<p align="right" class="style3">
<span class="style6">
<label></label>
<label></label>
</span>
<span class="style5">
<label></label>
</span>
<label>
<input type="submit" name="button" id="button" value="Login" />
</label>
</p>
<div align="right">
</div></form>
<div align="right"><div align="left"><p align="right"> </p>
</div></div></div></td>
</tr>
<tr>
<td bgcolor="#CCCCCC" class="style1"> </td>
</tr>
</table>
</body>
</html>
SLSB (implements userValidationRemote)
* userValidationBean.java
* Created on 26 March 2008, 18:25
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package Entities;
import javax.ejb.Stateless;
import javax.ejb.Remote;
import javax.persistence.PersistenceContext;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import Entities.UserTable;
import javax.annotation.*;
//import javax.transaction.UserTransaction;
* @author Ayo
@Stateless(mappedName="ejb/facade/userValidationBean")
@Remote(userValidationRemote.class)
(error on this line saying can't find class TransactionManagement)@TransactionManagement(value=TransactionManagementType.CONTAINER)
public class userValidationBean implements Entities.userValidationRemote {
@PersistenceContext(unitName="HealthInsuranceApp-ejbPU") private EntityManager manager;
/** Creates a new instance of userValidationBean */
public userValidationBean() {
//"SELECT u.username,u.password FROM UserTable u WHERE u.username =?1 and u.password=?2"
public boolean authenticate(String p_user,String p_password)
UserTable m_user=manager.find(UserTable.class,p_user);
if(m_user!=null)
return m_user.getPassword().equals(p_password);
return false;
Entity
* UserTable.java
* Created on 29 March 2008, 13:24
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
package Entities;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
* Entity class UserTable
* @author Ayo
@Entity(name="qs_UserPwd")
@Table(name = "user_table")
public class UserTable implements Serializable {
@Id
@Column(name = "user_id", nullable = false)
private Integer userId;
@Column(name = "username")
private String username;
@Column(name = "password")
private String password;
@Column(name = "user_type")
private String userType;
@Column(name = "access_level")
private String accessLevel;
@Column(name = "staff_id")
private Integer staffId;
@Column(name = "staff_type", nullable = false)
private String staffType;
@Column(name = "time_created")
private String timeCreated;
@Column(name = "time_modified")
private String timeModified;
@Column(name = "time_logged_in")
private String timeLoggedIn;
@Column(name = "time_logged_out")
private String timeLoggedOut;
@Column(name = "created_by")
private String createdBy;
/** Creates a new instance of UserTable */
public UserTable() {
* Creates a new instance of UserTable with the specified values.
* @param userId the userId of the UserTable
public UserTable(Integer userId) {
this.userId = userId;
* Creates a new instance of UserTable with the specified values.
* @param userId the userId of the UserTable
* @param staffType the staffType of the UserTable
public UserTable(Integer userId, String staffType) {
this.userId = userId;
this.staffType = staffType;
public UserTable(String p_user,String p_password)
setUsername(p_user);
setPassword(p_password);
* Gets the userId of this UserTable.
* @return the userId
public Integer getUserId() {
return this.userId;
* Sets the userId of this UserTable to the specified value.
* @param userId the new userId
public void setUserId(Integer userId) {
this.userId = userId;
* Gets the username of this UserTable.
* @return the username
public String getUsername() {
return this.username;
* Sets the username of this UserTable to the specified value.
* @param username the new username
public void setUsername(String p_user) {
p_user = username;
* Gets the password of this UserTable.
* @return the password
public String getPassword() {
return this.password;
* Sets the password of this UserTable to the specified value.
* @param password the new password
public void setPassword(String p_password) {
p_password=password;
* Gets the userType of this UserTable.
* @return the userType
public String getUserType() {
return this.userType;
* Sets the userType of this UserTable to the specified value.
* @param userType the new userType
public void setUserType(String userType) {
this.userType = userType;
* Gets the accessLevel of this UserTable.
* @return the accessLevel
public String getAccessLevel() {
return this.accessLevel;
* Sets the accessLevel of this UserTable to the specified value.
* @param accessLevel the new accessLevel
public void setAccessLevel(String accessLevel) {
this.accessLevel = accessLevel;
* Gets the staffId of this UserTable.
* @return the staffId
public Integer getStaffId() {
return this.staffId;
* Sets the staffId of this UserTable to the specified value.
* @param staffId the new staffId
public void setStaffId(Integer staffId) {
this.staffId = staffId;
* Gets the staffType of this UserTable.
* @return the staffType
public String getStaffType() {
return this.staffType;
* Sets the staffType of this UserTable to the specified value.
* @param staffType the new staffType
public void setStaffType(String staffType) {
this.staffType = staffType;
* Gets the timeCreated of this UserTable.
* @return the timeCreated
public String getTimeCreated() {
return this.timeCreated;
* Sets the timeCreated of this UserTable to the specified value.
* @param timeCreated the new timeCreated
public void setTimeCreated(String timeCreated) {
this.timeCreated = timeCreated;
* Gets the timeModified of this UserTable.
* @return the timeModified
public String getTimeModified() {
return this.timeModified;
* Sets the timeModified of this UserTable to the specified value.
* @param timeModified the new timeModified
public void setTimeModified(String timeModified) {
this.timeModified = timeModified;
* Gets the timeLoggedIn of this UserTable.
* @return the timeLoggedIn
public String getTimeLoggedIn() {
return this.timeLoggedIn;
* Sets the timeLoggedIn of this UserTable to the specified value.
* @param timeLoggedIn the new timeLoggedIn
public void setTimeLoggedIn(String timeLoggedIn) {
this.timeLoggedIn = timeLoggedIn;
* Gets the timeLoggedOut of this UserTable.
* @return the timeLoggedOut
public String getTimeLoggedOut() {
return this.timeLoggedOut;
* Sets the timeLoggedOut of this UserTable to the specified value.
* @param timeLoggedOut the new timeLoggedOut
public void setTimeLoggedOut(String timeLoggedOut) {
this.timeLoggedOut = timeLoggedOut;
* Gets the createdBy of this UserTable.
* @return the createdBy
public String getCreatedBy() {
return this.createdBy;
* Sets the createdBy of this UserTable to the specified value.
* @param createdBy the new createdBy
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
* Returns a hash code value for the object. This implementation computes
* a hash code value based on the id fields in this object.
* @return a hash code value for this object.
@Override
public int hashCode() {
int hash = 0;
hash += (this.userId != null ? this.userId.hashCode() : 0);
return hash;
* Determines whether another object is equal to this UserTable. The result is
* <code>true</code> if and only if the argument is not null and is a UserTable object that
* has the same id field values as this object.
* @param object the reference object with which to compare
* @return <code>true</code> if this object is the same as the argument;
* <code>false</code> otherwise.
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof UserTable)) {
return false;
UserTable other = (UserTable)object;
if (this.userId != other.userId && (this.userId == null || !this.userId.equals(other.userId))) return false;
return true;
* Returns a string representation of the object. This implementation constructs
* that representation based on the id fields.
* @return a string representation of the object.
@Override
public String toString() {
return "Entities.UserTable[userId=" + userId + "]";
please what do I do? or is there a better way? seems like my appserver(sun java system app server 9.1)doesnt support dependency injection as
there's always an exception in the server log when i try it.i use the default transaction provider toplink because use of any of the others raises an exception and my application index page never shows. please i need help? I want to be able to succesfully perform this authentication as its the only way i can move to the next level
Ayo.

Oracle form based on a view - need to return a value after database trigger

We have a form based on a view calling database trigger to insert data.
I need to display a message of the record ID inserted on the form.
The values to be displayed are ID field.

Hi,
if you use process of Automatic Row Processing (DML), you have an option *"Return Key Into Item"*.
This will return your primary key into item, and then you can display this item as a result.
Regards,
Aljaz

Form based on a VIEW

hi I have a form based on multiple views
when try to query the data in this form
I get this error
An unexpected error occurred: ORA-01445: cannot select ROWID from a join view without a key-preserved table (WWV-16016)
An unexpected error occurred: ORA-01445: cannot select ROWID from a join view without a key-preserved table (WWV-16016)
null

Right now you will be able to base a portal form only on updatable views. Non updatable views are not supported.
As a work around you can use QBE reports to query the data, without having the delete and update links.
Regards,
Sunil.
null

Problem in tabular form based on dynamic view and pagination

Hi All,
I have a manual tabular form based on a dynamic view. The view fetches the records based on search criteria given by the user in all cases. But this view fetches ALL records when user clicks on pagination, without considering the search criteria. This is the problem I am facing.
I am doing the following:
Since tabular form does not support pl/sql function returning query, I cannot use a table directly. I need my results based on search criteria selected by user. Hence I created a dynamic view and used a "INSTEAD OF UPDATE" trigger to update the table.
I use a set bind variables procedure, on load before header for setting the variables.
This view fetches the correct data based on user search always. It creates a problem only in one situation, when using pagination in the report.
The example can be found at:
http://apex.oracle.com/pls/otn/f?p=19399:1:
username = [email protected]
pwd = kishore
Here if "manager name" is entered as test, we get 5 records in "Summary of requests" report and 5 records in "Inactive Requests" report. When user clicks on Pagination in any of the reports, ALL the 7 records get fetched in "Summary of Requests" and 6 records in "Inactive Requests". How can I overcome this problem?? The report must consider the search variables even when pagination occurs.
Is this because, the inbuilt "html_PPR_Report_Page" executes the region query once again by considering all search variables as NULL?
Backend Code is at:
http://apex.oracle.com/pls/otn/
workspace: sekhar.nooney
Username :[email protected]
pwd: kishore
application id = 19399
My region code is something like:
select *
from regadm_request_v
where access_type = :F110_REGADM
and status <> 'INACTIVE'
order by request_id
My view code is:
CREATE OR REPLACE VIEW REGADM_REQUEST_V
AS
SELECT *
FROM REGREGOWNER.REGADM_REQUEST
WHERE upper(employee_name) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_EMPLOYEE_NAME),'%')||'%'
AND upper(manager_name) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_MANAGER_NAME),'%')||'%'
AND upper(employee_sunetid) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_EMPLOYEE_SUNET_ID),'%')||'%'
AND upper(manager_sunetid) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_MANAGER_SUNET_ID),'%')||'%'
AND upper(request_date) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_REQUEST_DATE),'%')||'%'
AND upper(USAGE_AGREEMENT_RECVD) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_USAGE_AGREMNT_RECVD,'~!@',NULL,REGADM_REQUEST_PKG.GET_USAGE_AGREMNT_RECVD)),'%')||'%'
AND upper(STATUS) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_STATUS,'~!@',NULL,REGADM_REQUEST_PKG.GET_STATUS)),'%')||'%'
AND upper(REQUEST_APPROVED) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_REQUEST_APPROVED,'~!@',NULL,REGADM_REQUEST_PKG.GET_REQUEST_APPROVED)),'%')||'%'
AND upper(nvl(APPROVAL_DATE,sysdate)) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_APPROVED_DATE),'%')||'%'
AND upper(APRVL_REQUEST_SENT) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_EMAIL_APPROVERS,'~!@',NULL,REGADM_REQUEST_PKG.GET_EMAIL_APPROVERS)),'%')||'%'
AND upper(NOTIFY_APPROVED) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_APPROVAL_NOTIFICATION,'~!@',NULL,REGADM_REQUEST_PKG.GET_APPROVAL_NOTIFICATION)),'%')||'%'
I would be glad for any suggestions.
Andy/Varad any ideas? You both helped me a lot on my problems for the same application that I had faced before in More Problems in Tabular form - Please give me suggestions.
Thanks,
Sumana

Hi Andy,
The view and the package for setting bind variables work properly in my entire application other than the pagination. A pity that I came across this only now :(
I have used this same method for holding variables in another application before, where I needed to print to PDF. I used this approach in the other application because my queries were not within the APEX character limit specified for the "SQL Query of Report Query shared component".
In this application, I initially had to fetch values from 2 tables and update the 2 tables. Updateable form works only with one table right? Hence I had created a view. Later the design got changed to include search and instead of changing the application design I just changed the view then. Still later, my clients merged the 2 tables. Once again I had just changed my view.
Now, I wanted to know if any method was available for the pagination issue (using the view itself). Hence I posted this.
But as you suggested, I think it is better to change the page design quickly (as it would be much easier).
If I change the region query to use the table and the APEX bind parameters in the where clause as:
SELECT *
FROM REGADM_REQUEST
WHERE upper(employee_name) LIKE '%'||nvl(upper(:P1_EMPLOYEE_NAME),'%')||'%' .....
I also changed the ApplyMRU to refer to the table.
Here the pagination issue is resolved. But here the "last Update By" and "Last Update Date" columns do not get updated with "SYSDATE" and "v(APP_USER)" values, when update takes place. Even if I make the columns as readonly text field, I am not sure how I can ensure that SYSDATE and v('APP_uSER') can be passed to the columns. Any way I can ensure this? Please have a look at the issue here: http://apex.oracle.com/pls/otn/f?p=19399:1:
I have currently resolved the "last update" column issue by modifying my view as:
CREATE OR REPLACE VIEW REGADM_REQUEST_V
AS
SELECT *
FROM REGADM_REQUEST
I modified my region query to use APEX bind parameters itself as:
SELECT *
FROM REGADM_REQUEST_V
WHERE upper(employee_name) LIKE '%'||nvl(upper(:P1_EMPLOYEE_NAME),'%')||'%' .....
And I use the "INSTEAD OF UPDATE" trigger that I had initially written for update. The code is:
CREATE OR REPLACE TRIGGER REGADM_REQUEST_UPD_TRG
INSTEAD OF UPDATE
ON REGADM_REQUEST_V
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
UPDATE REGREGOWNER.REGADM_REQUEST
SET MANAGER_EMAIL = :NEW.MANAGER_EMAIL
, EMPLOYEE_EMAIL = :NEW.EMPLOYEE_EMAIL
, STATUS_UPDATE_DATETIME = SYSDATE
, USER_UPDATE_ID = (SELECT v('APP_USER') FROM DUAL)
WHERE REQUEST_ID = :OLD.REQUEST_ID;
END;
Please let me know how I can resolve the "last update" column issue using the table itself. (Just for my learning)
Thanks,
Sumana

Help on form based on tables

Hi
I am new to Portal,
My problem is I have a form based on a table, Now I want to process the form after a validation (eg: username and password)
so I added two more new components to the form to get username and password and I tried to validate this by writing a procedure to the submit button before 'doinsert;'. Then I cant get the values of those two new fields by
uname:= p_session.get_value_as_VARCHAR2(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_UNAME');
Anyone have a solution?
Thanks.

thanks for the clue, but what i want is to validate the username and password befor do insert what i tried is
declare
mid member.member_id%Type;
msg_id number;
user member.uname%Type;
pswd member.pwd%Type;
begin
msg_id := p_session.get_value_as_NUMBER(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_U_ID');
     user := p_session.get_value_as_VARCHAR2(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_PWD');
     pswd := p_session.get_value_as_VARCHAR2(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_REPLY_TO');
     SELECT member.member_id INTO mid
     FROM member
     WHERE member.uname= user AND member.pwd= pswd;
     IF mid<>null THEN
          p_session.set_value(
               p_block_name => 'DEFAULT',
          p_attribute_name => 'A_MEMBER_ID',
          p_value => mid);
          doInsert;
          proc_update1(msg_id);
     END IF;
end;
but this gives an error!
help needed urgently!
thanks

Error when updating data in a form based in a view

Hi:
i have 5 tables for enterprise data (telephone, fax and so on). i want to create a form based in all those tables, so i create a view over all the 5 tables and create the form. but when calling the portlet and trying to alter (update, insert, etc.) the data i get this error. Seems that i missed to do something with my tables but i don't know what does that non key-preserved thing mean.The error is the following:
Error: Cannot link to the module: 1901051912 ORA-01445: cannot select ROWID from a join view without a key-preserved table (WWV-16062)
An unexpected error occurred: ORA-01445: cannot select ROWID from a join view without a key-preserved table (WWV-16016)
An unexpected error occurred: ORA-01445: cannot select ROWID from a join view without a key-preserved table-SELECT ROWID, IDBASE,NOMBRE,NOMBRE_FISCAL,NOTAS,BAJA,RETENCION,PREVISION_PAGOS,IVA,CIF,ID_DIRECCION,IDBASE_DIRECCION,CALLE,NUMERO,PISO,MANO,CODIGO_POSTAL,CIUDAD,ID_TELEFONO_EMP,IDBASE_TELEMP,TELEFONO_EMPRESA,ID_FAX_,IDBASE_FAXEMP,FAX,ID_EMAIL_EMP,IDBASE_EMAILEMP,E_MAIL FROM PTSS.A_VISTA where IDBASE=1 ORDER BY ROWID ASC (WWV-16016)
Any help will be welcomed.
Thanks in advance.
Regards. Urko.

You cannot update, insert, or delete records from a form that's based on a view. That is because rowid is not in the view, so it cannot lock records.

Can we create an APEX Form based on Table which has no Primary Key

Hi,
I have a requirement.
I need to create a FORM based on a table having no Primary Key but it is having Unique Key . I can use Unique Key as an alternate of Primary Key.
but When I tried to create a Form, I got the following message.
Source tables for forms and tabular forms must have a primary key
Thanks,
Deepak

Deepak_J wrote:
Hi,
I have a requirement.
I need to create a FORM based on a table having no Primary Key but it is having Unique Key . I can use Unique Key as an alternate of Primary Key.
but When I tried to create a Form, I got the following message.
Source tables for forms and tabular forms must have a primary key
Thanks,
DeepakGood database design will always require a PK on the tables. There are only very few and rare expetions to this rule. One would be when you have store the data only temporarily in this table, like it is often done for import/loader tables. The data is first loaded in the "import"-table, then validated and then transported to the "real" tables. In such a scenario you can ignore the primary key on purpose. Because you already have a UK on this table it can't be such a scenario.
For most other scenarios you should always add a PK. Ask critically why there is no PK on it. Is there a reason for it or was the table designer just not doing its job well?
Btw: A UK is identical to a PK if the column is mandatory (NOT NULL). In this case you could simply change the constraint from UK to PK.

Add a form (based on query) to a form (based on table)

I have a normal form based on a table. I want to put in a little form in a region of this first form that is based on a query. They have one field in common.
How can I do this?
Elsie

Hi Elsie,
Effectively, you want to end up with a single form and save the data back into two or more tables?
If so, you could base the entire form on a SQL view and use an INSTEAD OF trigger to update the underlying tables.
Regards
Andy

Creating form based on table with non-sequence pk.

How to you create a form based on a varchar2 column and not a sequenced assigned pk. So the pk would be entered at the time a new
row is added. It would be entered just like the other fields from the form and not a sequence.
How do you do this as when using the wizard it prompts you to select one of 3 ways to define the pk.
Sequence, trigger or pl/sql code.
If the answer is pl/sql code, what do I need to create in the code?

If the primary key is created by the user themselves (which is not recommended, you should have another ID which the user sees which would be the varchar2 and keep the primary key as is, the user really shouldn't ever edit the primary key) then all you need to do is make sure that the table is not populated with a primary key in the wizard and then make sure that you cannot insert a null into your varchar primary key text field.
IF you're doing it this way I would make a validation on the page which would run off a SQL Exists validation, something along the lines of
SELECT <primary key column>
FROM <your table>
WHERE upper(<primary key column>) = upper(<text field containing user input>);
and if it already exists, fire the validation claiming that it already exists and to come up with a new primary key.
Like I said if you really should have a primary key which the database refers to each individual record itself and then have an almost pseudo-primary key that the user can use. For example in the table it would look like this:
TABLE1
table_id (this is the primary key which you should NOT change)
user_table_id (this is the pretend primary key which the user can change)
other_columns
etc
etc
hope this helps in some way

How to create a form based on table using dynamic page?

Hi,
I need to create a form using dynamic page. How do you pass values from the html form to a oracle procedure that will get executed on submission of the form ? I could not find any documents which shows how to do that. Can anyone please help me out with an example ?
thanks,
Mainak

Hi,
Something seems to get added to the form action because of "http". Hence I am removing it.
You need to write a procedure with the values in the as parameters. Say for example you want to insert a record into dept
table then
Dynamic page code
<html>
<body>
<form action="portalschema.insert_dept">
<input type="text" name="p_deptno">
<input type="text" name="p_dname">
<input type="submit" name="p_action" value="save">
</form>
</body>
</html>
Procedure code.
create or replace procedure insert_dept
(p_deptno in number,
p_dname in varchar2,
p_action in varchar2)
is begin
if p_action = 'save' then
insert into scott.dept(deptno,dname) values(p_deptno,p_dname);
commit;
end if;
end;
grant execute on insert_dept to public;
Hope this helps.
Thanks,
Sharmila

Create Tabular Form wizard - how to add rows to Table / View Owner list?

Create Tabular Form wizard asks to choose "Table / View Owner"
How to add additional schemas/users to this "Table / View Owner" dropdown list?

Next step:
I tried to create 2nd application - and it sees and allows to select from schemas I added in previous step.
Then I tried to add 1 more schema - and 2nd application can't see it...
I create 3rd application and select 1st schema (assigned when workspace was created) - and it sees only this one schema
I create 4th application and select another schema (added in previous steps) - and it sees 2 schemas from 4 assigned
what is this?
how to live with it?

How to create a form based on table@databaselink

I have created a database link under OracleXe to access an Oracle 9i and it works very well. I can manually access the tables that I like to see. Want to experiment to create a form under HTMLDB based on a table from another database that I have created DataLink to. When I go choose Create Application in HMTLDB and then select Form from page type under table or view I tried to do this tablename@databaselink but it seems it can not find the table this way. Any idea how to do this?
Thanks

Mike,
As I am trying to test and learn more about htmldb I was trying to get some data from oracle 9i to oracleXe, create some forms, reports and etc. At first I tried to use views and forgot to add the primary key, got the error so I posted the message on the board.
Then I did try out the long way creating tables with package and procedure and some other fun stuff to create an application which by the way it worked very well. Then I created some users and changed some password. When I tried again to run the application I start getting invalid login credentials. After many attempts finally I went home, as I was driving home I thought about something and at home I tried it.
I did some testing and noticed if I create a user under admin say userA+passwordA then login with userA+passwordA, create a table and then create an app base on that table and then run the app, with userA+passwordA I can login and app works perfectly. Then I logged out and as admin logged in, changed the userA password to passwordB. I logged out and logged in with userA+passwordB and then when I tried to run the app I get the invalid login credentials, when I change the passwordB to passwordA the app will works again. This is suppose to be this way!
Again thanks to all

Form based on a view - FRM-40654: Record has been updated by another user.

Hi All,
I am hoping that somebody can help me with this problem that is occurring only when I try an update a record in forms.
I have a block based on a join-view, I can insert no problems, but I can only update certain records within the block. If I come across a second record that is similar to the first except for primary key and a couple of other values and try and update that record forms gives me the following message FRM-40654: Record has been updated by another user. Re-query to see change.
The first record I have no problems in updating and I have followed a number of suggestions to get this to work, like setting the key-mode of the block to updateable/non-updateable and setting the primary key to 'yes' for some of the database items. I have also created procedures within the database that are called by triggers on-insert, on-update etc.
If anybody has any ideas how I can solve this I would be happy to hear your suggestions.
Thanks in Advance.
Regards,
Scott.

Scott,
beside of
1) In the block properties change the Key Mode property of the block to be Non-Updatable Primary Key
2) Mark one or more columns as Primary Key in the item Property Palette - in this instance you would set the property for Empno.
Enforce Primary Key = no
Key Mode = Unique
Update Changed Columns Only = Yes
I found a bug entry that is supposed to be fixed in Patch 9 of Forms 6i (assuming you are running 6i). So if you could try with a more recent Patch set (e.g. 14) then probably the problem will go away.
Fran

Tabular Form based on table with lots of columns - how to avoid scrollbar?

Hi everybody,
I'm an old Forms and VERY new APEX user. My problem is the following: I have to migrate a form application to APEX.
The form is based on a table with lots of columns. In Forms you can spread the data over different tab pages.
How can I realize s.th similar in APEX? I definitely don't want to use a horizontal scroll bar...
Thanks in advance
Hilke

If the primary key is created by the user themselves (which is not recommended, you should have another ID which the user sees which would be the varchar2 and keep the primary key as is, the user really shouldn't ever edit the primary key) then all you need to do is make sure that the table is not populated with a primary key in the wizard and then make sure that you cannot insert a null into your varchar primary key text field.
IF you're doing it this way I would make a validation on the page which would run off a SQL Exists validation, something along the lines of
SELECT <primary key column>
FROM <your table>
WHERE upper(<primary key column>) = upper(<text field containing user input>);
and if it already exists, fire the validation claiming that it already exists and to come up with a new primary key.
Like I said if you really should have a primary key which the database refers to each individual record itself and then have an almost pseudo-primary key that the user can use. For example in the table it would look like this:
TABLE1
table_id (this is the primary key which you should NOT change)
user_table_id (this is the pretend primary key which the user can change)
other_columns
etc
etc
hope this helps in some way

Performance Form based on procedure vs based on table/view

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