Dynamic SQL In Java - Query Value From Database

Jun 18, 2014

I have code which query value from database, the use case is the user can enter value as 1,01,11 in database but when the user enter value in xml file he can only enter 11,01,12 in database there is two columns lets say column test1=1 and test2=2 combination of this is 12, which is the value the use will enter in xml, but sometime the use can enter test1=04 than column test2=00 how can i approach this
 
I got table called card with column crdind,crdpos1,cardpos2 as primary key. The user can enter value as
 
crdind=1
crdpos1=5
crdpos2=3
inactivedate=2013-05-24
activedate=null
 
another row
 
crdind=1
crdpos1=5
crdpos2=5
inactivedate=2013-05-24
activedate=null
 
another row

crdind=6
crdpos1=02
crdpos2=00
inactivedate=2013-05-24
activedate=null
 
The rule say if you enter one number in crdpos1 eg 2 than you must enter value in crdpos2 it can be any number 1-9 but if you enter 00-09 in crdpos1 than crdpos2 is 00
 
The challenge I have is to query this value after they been enter. I have xml file which got field crdpos the use enter 15 which is the combination of column crdpos1=1 and crdpos2=5 ... How can I split the value crdpos and got and able to query in database in two separate column ....

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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.*;
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public static void main(String[] args)throws Exception {
String userID;
String firstName;

[Code] ....

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Jan 15, 2015

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code :

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import java.io.*;
import java.sql.*;
import java.util.*;
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[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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  try {
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[Code] ....

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Java Code:

public void insertEntry(
Hashtable<String, String> strings,
Hashtable<String, Integer> integers,
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[code]....

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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
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[code]....

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Nov 4, 2014

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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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[Code] ....

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[Code] ....

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[Code] ....

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[Code] .....

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[code]....

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* To change this template, choose Tools | Templates
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[Code]...

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