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sql exception : user property is missing ???

 
Ranch Hand
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hi

i am using postgres on redhat 9 ...i have written a jdbc code for connection with postgres...when i run it ....it gives the following error


SQL EXCEPTION The user property is missing. It is mandatory.


the code is as follows :

import java.sql.*;

class mydb

{

public static void main(String [] args)

{
Connection dbconn ;
Statement stmt ;
ResultSet author ;
String sourceURL = "jdbc ostgresql://localhost/synergy";
try
{

Class.forName("org.postgresql.Driver");

dbconn = DriverManager.getConnection(sourceURL);
stmt = dbconn.createStatement();
author = stmt.executeQuery("SELECT * FROM cust_info");


while(author.next())
{

System.out.println(author.getString("cust_id"));
}


dbconn.setAutoCommit(true);

stmt.close() ;

}


catch(ClassNotFoundException cnfe){

System.out.println("CLASS NOT FOUND EXCEPTION "+cnfe);

}

catch(SQLException sqle){

System.out.println("SQL EXCEPTION "+sqle);

}
}
}

plz solve it out.....
 
Greenhorn
Posts: 8
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Hi, I hope that you've solved your problem.
If you don't, try :
dbconn = DriverManager.getConnection(sourceURL,"your user name for postgres","your password");
instead of dbconn = DriverManager.getConnection(sourceURL);
Good luck
Nicolas
 
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PostgreSQL, like many modern DBMSs is designed with the idea that many users/applications will be sharing the same database(s) and that some should be allowed to do things that other aren't. A good example I saw the other day was in a financial system, where users could add transactions, but not update or remove them (in accounting, you should always add a cancelling transaction, not simply delete a bad one, so that a full audit trail is preserved).

So what a userid/password gives you is a way of attaching to a specific set of security rules. It often does other things as well, but security is one of the more important reasons.
 
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