Java Console SQL DB Query App
Nov 4, 2014
I seem to be having a issue with my java console app what it should do is query a SQL DB and list the user details (userid, firstname ,lastname) from the user table, and the users stocks (stockname ,stockdiscription) associated to each user from the userstocks table if I'm thinking correctly!
I'm sure it is just a logical error, but I'm not sure of the way to get the out put I'm looking for. I will add the makeDB.java file and DatabaseQuery.java file as well as the current Exception(Run Time Exception) below.
**I have added other users and stocks manually - Not just what the MakeDB.java file inserts **
Output and Exception:
Stock holdings by User
User ID User Name
Stock - Description
-------------------------------------------
admin01 Default Admin
Exception in thread "main" java.sql.SQLException: ResultSet is closed
at sun.jdbc.odbc.JdbcOdbcResultSet.checkOpen(JdbcOdbcResultSet.java:6647
)
at sun.jdbc.odbc.JdbcOdbcResultSet.next(JdbcOdbcResultSet.java:1248)
at DatabaseQuery.main(DatabaseQuery.java:45)
Press any key to continue . . .
Java Code:
MakeDB.java:
import java.sql.*;
import java.io.*;
public class MakeDB
{
public static void main(String[]args) throws Exception
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
[Code] ....
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Nov 6, 2014
My console SQL Query app is not giving me the desired output.I am sure its might have something to do with my SQL Query.Its missing the description of the stock items and it prints a new line for each user as per number of stocks an repeats the user details and then prints the stock listed by that user(only want the user listed once with all its stocks). I will add my files and current output and desired out put below.
MakeDB.java:
import java.sql.*;
import java.io.*;
public class MakeDB
{
public static void main(String[]args) throws Exception
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url="jdbc:odbc:StockTracker";
[Code] .....
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Java Code:
public void insertEntry(
Hashtable<String, String> strings,
Hashtable<String, Integer> integers,
Date created, Date paid, boolean enabled)
throws ClassNotFoundException, SQLException {
Class.forName("com.mysql.jdbc.Driver");
[code]....
The output of the whole program, though all it has done so far is create some default values and attempt to insert them with the above code, where the problem occurs.
Debug: SQLpaid = 1990-03-21
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorEx ception: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'INSERT enabled=0, username='default_username', created='2000-03-21', paid='1990-' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(DelegatingConstructorAccessorImpl.java:45)
[code]....
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Jun 18, 2014
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activedate=null
another row
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crdpos2=5
inactivedate=2013-05-24
activedate=null
another row
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crdpos1=02
crdpos2=00
inactivedate=2013-05-24
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Oct 4, 2014
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[Code] ....
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byte b = 0;
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Does the post increment not carry out the post increment as "give me the value of b and then add 1 to b" where I would have expected 'add 1 to b' to do the same integer promotion as the previous example ? The compiler will also allow the following
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[Code] ....
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[Code] ....
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<tr bgcolor="pink" >
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<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="java.sql.*" %>%>
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[Code] ....
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I have done 90% of the coding however i am stuck with producing the output, i just cant get the user fields to show.
I have attached a picture of the output that is required. The program consists of two classes i have attached the database class, and have inserted my coding below.
import java.sql.*;
import java.io.*;
import java.util.*;
public class QueryDB {
private Connection con = null;
String userID,
[Code] ...
Attached image(s)
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Program Name: QueryDBDB.java
Purpose: to build an initial database for the stocktrakcer application
*/
import java.sql.*;
import java.io.*;
import java.util.*;
public class QueryDB
{
private Connection con = null;
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[Code] .....
Attached image(s)
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Dec 14, 2014
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import java.io.*;
import java.sql.*;
import java.util.*;
public class StockDatabaseQuery {
public static void main(String[] args)throws Exception {
String userID;
String firstName;
[Code] ....
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Apr 10, 2014
My code is as follows:
import java.util.Scanner;
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public static void main (String args[]) {
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float f ;
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[code]....
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import java.util.Scanner;
public class GetUserInput {
public static void main (String args[]) {
int i;
float f ;
String s;
[code]....
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Jan 15, 2015
My output of my app its outputting the correct data just no the format ...
code :
DatabaseQuery.java :
import java.io.*;
import java.sql.*;
import java.util.*;
public class DatabaseQuery
[Code] ....
Current output:
Stock holdings by User
User ID User Name
Stock - Description
-------------------------------------------
admin01
Default Admin
DELL Dell Computer Corp
admin01
Default Admin
MSFT Microsoft Computer Corp
[Code] ....
Desired Output :
Stock holdings by User
User ID User Name
Stock - Description
-------------------------------------------
admin01 Default Admin
DELL Dell Computer Corp
MSFT Microsoft Computer Corp
ORCL Oracle Corp
[Code] .....
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package querywork;
import java.io.File;
import java.io.StringReader;
import java.io.StringWriter;
[Code]...
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<html xmlns="http://www.w3.org/1999/xhtml"
[Code] ....
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org.jboss.weld.exceptions.WeldException: WELD-000049 Unable to invoke public void com.manaar.beans.SelProjectMgtBean.init() on com.manaar.beans.SelProjectMgtBean@681859ae
at org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.invokeMethods(DefaultLifecycleCallbackInvoker.java:91)
[Code] ....
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