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"given file does not exist" issue with UCanAccess connection

I'm trying to connect to a Microsoft Access database in Eclipse (Mars 4.5.0; Java 1.8) on a Mac (el capitaine). I keep getting the error:
net.ucanaccess.jdbc.UcanaccessSQLException: UCAExc:::3.0.4 given file does not exist: Users/sebastianzeki/Documents/BEST2RFA_DBv1.accdb
This is my code:
import java.sql.*;
public class DbAccess
{
public static void main(String[] args)
{
try
{
Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");
Connection conn=DriverManager.getConnection("jdbc:ucanaccess://Users/sebastianzeki/Documents/BEST2RFA_DBv1.accdb;");
Statement stment = conn.createStatement();
String qry = "SELECT * FROM Table1";
ResultSet rs = stment.executeQuery(qry);
while(rs.next())
{
String id = rs.getString("ID") ;
String fname = rs.getString("Nama");
System.out.println(id + fname);
}
}
catch(Exception err)
{
System.out.println(err);
}
}
}
I'm sure its something to do with the pathname slashes but I've tried every permutation and still get the same error.

I'm not familiar with Mac file systems but have you tried "jdbc:ucanaccess:///..." (including an extra slash)?
Explanation:
The path to the database file immediately follows the jdbc:ucanaccess:// prefix of the connection URL, so for
jdbc:ucanaccess://Users/sebastianzeki/Documents/BEST2RFA_DBv1.accdb;
the path to the database file is
Users/sebastianzeki/Documents/BEST2RFA_DBv1.accdb
which is interpreted as a relative path, relative to the OS-level current directory in effect when the Java application was launched.
In order for the path to be interpreted as an absolute path it must start with a forward slash, i.e.,
/Users/sebastianzeki/Documents/BEST2RFA_DBv1.accdb
therefore the connection URL needs to be
jdbc:ucanaccess:///Users/sebastianzeki/Documents/BEST2RFA_DBv1.accdb

Open your MS Access Database
Go on FILE
Select OPEN Database
Right click your database and select COPY LINK
Paste the link after jdbc:ucanaccess://

Java database query not printing out in console

I'm creating my first Java program that pulls data from a MySql database. I'm having trouble getting the result from a query to print in console. My program compiles without error but out.print command not displaying content in console. I'm using Intellij IDEA 15.0.2.
import java.sql.*;
import static java.lang.System.*;
public class Main {
public static void main(String[] args) {
String url = "jdbc:mysql://localhost:3306/animal";
String user = "username";
String pwd = "password";
try {
Connection connection =
DriverManager.getConnection(url, user, pwd); // Get Connection
Statement statement = connection.createStatement(); // Create Statement
String query = "SELECT * FROM animal";
ResultSet resultSet = statement.executeQuery(query); // Execute Query
while (resultSet.next()) { // Process Results
out.print(resultSet.getInt("animal_id"));
}
} catch (SQLException se) { }
}
}

To print out to console the correct command is
System.out.print("Whatever you want to print");
not
out.print("Whatever you want to print");

Yeah.. as BradStell said you have to use
System.out.print(resultSet.getInt("animal_id"));
instead of
out.print(resultSet.getInt("animal_id"));
Another suggestion that I would like to make is Always do something on catching an exception. You have no code in the catch block. Atleast try to print the exception there. That would help you very much in finding errors in your code .

The problem was with the database driver. I needed to use the forName method(), and add the driver url for MySql. After I successfully implemented this class I was able to create sql queries without issue. Thanks for the tip with the exception handling #Senthil Vidhiyakar
try {
Class.forName("com.mysql.jdbc.Driver");
System.out.print("Working");
}
catch (Exception e){ System.out.println("Not working");}
I also had to connect the mysql connector jar. The process for doing this in Intellij IDEA is as follows.
File >> Project Structure "The project structure window will appear then on the left side menu click Modules in the main content area click on the Dependencies tab. Next click the green +. Choose option 1 JARs or directories. Finally, navigate to the mysql connector jar. Then click apply, and ok."

can't make updatable resultset with ucanaccess

I've tried most of the examples found here and the web, but I can't open a MS access database(2002 or 2013) and get an updatable result set using UCanAccess. The same code using the JDBC:ODBC driver/connection/works. I've written short test code to check concur_updatable to check this, so I must be missing something. I'm using JDK 1.7 on a Win7 machine. I also have another machine with the same results.
This works:
/*
class jdbc, for testing jdbc:odbc CONCUR_UPDATABLE.
*/
import java.sql.*;
public class jdbc {
private static String dbFQN;
public static void main(String[] args) {
try {
dbFQN = ("C:\\phil\\programming\\kpjl2002.mdb");
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=" + dbFQN;
System.out.println("Loading database: " + database);
Connection conn = DriverManager.getConnection(database, "", "");
Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
// Fetch records from table
String selTable = "SELECT * FROM " + "tblLibrary" + " ORDER BY Artist, Cat, Cart";
s.execute(selTable);
ResultSet rs = s.getResultSet();
int concurrency = rs.getConcurrency();
if(concurrency == ResultSet.CONCUR_UPDATABLE)
{
System.out.println("rs is updatable");
} else {
System.out.println("rs Not updatable");
}
s.close();
conn.close();
} //close try
catch (Exception ex) {
ex.printStackTrace();
} //close catch
} //close main method
} //close dbAccess class
The output is that rs is updatable.
This doesn't work:
/*
class ucan, for testing ucanaccess CONCUR_UPDATABLE.
C:\jdk1.7.0_79\jre\lib\ext\ucanaccess-2.0.9.5.jar
C:\jdk1.7.0_79\jre\lib\ext\hsqldb.jar
C:\jdk1.7.0_79\jre\lib\ext\jackcess-2.1.0.jar
C:\jdk1.7.0_79\jre\lib\ext\commons-lang-2.6.jar
C:\jdk1.7.0_79\jre\lib\ext\commons-logging-1.1.1.jar
also present:
C:\jdk1.7.0_79\jre\lib\ext\commons-logging-1.2.jar
C:\jdk1.7.0_79\jre\lib\ext\commons-lang3-3.4.jar
*/
import java.sql.*;
public class ucan {
private static String dbFQN;
public static void main(String[] args) {
try {
dbFQN = ("C:\\phil\\programming\\kpjl2002.mdb");
String database = "jdbc:ucanaccess://" + dbFQN;
System.out.println("Loading database: " + database);
Connection conn = DriverManager.getConnection(database, "", "");
Statement s = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
// Fetch records from table
String selTable = "SELECT * FROM " + "tblLibrary" + " ORDER BY Artist, Cat, Cart";
s.execute(selTable);
ResultSet rs = s.getResultSet();
int concurrency = rs.getConcurrency();
if(concurrency == ResultSet.CONCUR_UPDATABLE)
{
System.out.println("rs is updatable");
} else {
System.out.println("rs Not updatable");
}
s.close();
conn.close();
} //close try
catch (Exception ex) {
ex.printStackTrace();
} //close catch
} //close main method
} //close dbAccess class
the output is that rs is Not updatable. So I cannot update or insert rows in the resultset.
The code posted is the operative part of a larger project, where UCanAccess can read the table and put the contents in a jList and jTextarea, with formatting. When I started writing code to update or add a new record, I ran into the problem.
I apologize if this is a bit long.
Anybody have an idea what I'm missing or doing wrong?
BTW, this is one of my 2 fav sites for good, usable Java answers.
UPDATE:
Got an idea from old co-worker, the original database may have been copied from an original Access97 db. to a 2000 db. I had used 2013 Repair and Compact to make "new" 2002 and 2013 db's. Access must retain '97 type even when doing what I did. So, I created a new 2013 dummy db to test, and UCanAccess will report resultset as updatable. I will try to recreate the record data of the current db in a new database file, and see if that works. I'm hoping this is the problem, since UCanAccess doesn't support updatability with Access97 db's. I'll let ya'll know what I find.
Thanks.

I had used 2013 Repair and Compact to make "new" 2002 and 2013 db's. Access must retain '97 type even when doing what I did. So, I created a new 2013 dummy db to test, and UCanAccess will report resultset as updatable.
The "Compact and Repair Database" feature in Access does not change the database file version. If you have (what you suspect to be) an older-version database file then you should use the "Save Database As" feature under "File > Save & Publish" * to convert the database file to a newer version.
* (... at least that's where it is in Access 2010.)

Well, after a nice weekend of eating brats and drinking good beer at Germanfest, I finally got things working. I decided to scrap the MS Access db and put the 472 records in a SQLite db. With that, I was able to get PreparedStatements to work to display the records in a jList and JTextArea, add a new record and update a couple fields in an existing record within the same run of the test application. Did it both as a command line run GUI and from NetBeans 8.0, so I think my problems are solved. After a couple of summer projects get done, I'll get back to re-writing the original VB app using Java.
Thanks Gord, and everyone here.

Connection to Oracle Database with Java

I can't connect to my Oracle database server. This is the code :
import java.util.*;
import java.sql.*;
import java.io.IOException;
public class Knigi {
public static void main(String[] args) {
String baza_DRIVER="oracle.jdbc.driver.OracleDriver";
String baza_STRING="jdbc:oracle:thin:#localhost:1521:";
String baza_USERNAME="knigi";
String baza_PASSWORD="knigi";
Locale.setDefault(Locale.ENGLISH); // Vazhno e bidejkji Oracle treba da znae kakvi poraki da pojavuva
try {
Driver Driver = (Driver)Class.forName(baza_DRIVER).newInstance();
Connection Conn = DriverManager.getConnection(baza_STRING,baza_USERNAME,baza_PASSWORD);
PreparedStatement Statement = Conn.prepareStatement("SELECT * FROM zhanrovi");
ResultSet zhanrovi = Statement.executeQuery();
boolean isEmpty = !zhanrovi.next();
boolean hasData = !isEmpty;
while (hasData) {
System.out.println("Zhanr: "+zhanrovi.getString("ZH_IME"));
PreparedStatement Statement2 =
Conn.prepareStatement("select * from knigi where ZH_BR = ?");
Statement2.setInt(1,zhanrovi.getInt("ZH_BR"));
ResultSet knigi = Statement2.executeQuery();
boolean isEmpty2 = !knigi.next();
boolean hasData2 = !isEmpty2;
if (isEmpty2) {
System.out.println(" - nema knigi");
} else {
System.out.println(" - Knigi:");
};
while (hasData2) {
System.out.println(
" " +
knigi.getString("ISBN") +
" - " +
knigi.getString("NASLOV")+" ");
hasData2=knigi.next();
}
knigi.close();
hasData=zhanrovi.next();
}
zhanrovi.close();
Conn.close();
} catch (Exception e) {
System.out.println(e);
}
}
}
And I am getting this message:
java.sql.SQLException: Io exception: Connection refused(DESCRIPTION=(TMP=)(VSNNUM=186646784)(ERR=12504)(ERROR_STACK=(ERROR=(CODE=12504)(EMFI=4))(ERROR=(CODE=12504)(EMFI=4))))
In school, this example works. Where is the problem??

Try this, might help
jdbc:oracle:thin://<host>:<port>/<SERVICE_NAME>
service_name=SID of the database, most often ORCL.
cheers,

Do you have your DB server running at your local machine at: localhost:1521?
Your school machine might have DB server running on it but your home machine simply doesn't.
The db connection URL "jdbc:oracle:thin:#localhost:1521:" is normally not hard coded. Point it to localhost almost always fail it when you run your code on a different machine.

There are three major instances when you get such Connection refused error
There is no database server running at the host:port you have specified i.e at localhost:1521
Password you have entered is wrong.
The port you have specified is blocked by a firewall or you are behind some proxy that does not allow you to connect to that port.
You can manually try to connect to your database from command line and see if the connection is live.

Question has been closed ... I had to do a tunneling because my Faculty server has closed connection from out side the faculty network, also they told me that the password had been changed ....
btw tnx for the answers they helped me to connect to my local server and access my local data base ..
Thanks again mates ^_^

JDBC MYSQL Connection without specifying database?

I am using the SphinxQL MySQL client which stores indexes as "tables" but has no real notion of a "database"...One specifies the port (9306 in my case) at which the sphinx mysql instance listens and in theory should be able to communicate as normal.
I have the following test code:
import java.sql.*;
public class Dbtest {
public static void main (String[] args) {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:9306",
"user","password");
con.setReadOnly(true);
Statement stmt = con.createStatement();
ResultSet res = stmt.executeQuery("SELECT * from index_turned_table");
while (res.next()) {
String stuff1 = res.getString(1);
String stuff2 = res.getString(2);
System.out.println("Adding " + stuff1);
System.out.println("Adding " + stuff2);
}
res.close();
stmt.close();
con.close();
}
catch(Exception e)
{
System.out.println (e);
}
}
Upon execution, the code just hangs and does nothing and doesn't print out an exception. What are useful things I can do to figure this out or if any one has direct experience what might be going on?

This work with 1.10-beta http://www.olegsmith.com/2010/12/scalalift-sphinxql.html
and not work with 2.0.1-beta. Use mysql-connector-java 5.1.15.

Your SphinxQL instance is listening on port 9306. Your MySQL is listening on some other port, likely on the default 3306. You can use MySQL JDBC driver to connect to MySQL, but you cannot use it to connect to SphinxQL. It just doesn't understand JDBC driver communication protocol.