How do I create a connection to MS Access database?

The following example show you how to create a connection to Microsoft Access databases. To allow the database access to be authenticated, the security user account can be added from File -> Info -> Users and Permissions screen.

Just like accessing any other databases in the Java platform we need a JDBC driver. To access Microsoft Access databases we can use UCanAccess, an open-source pure Java JDBC driver for Microsoft Access databases, it allows us to manipulate data in various versions of MS Access databases.

Here what we do in the code snippet below:

  • Prepare USERNAME and PASSWORD that will be used for accessing the database.
  • Define the database JDBC URL which contains the path to MS Access file.
  • Get the connection in try-with-resource statement using the DriverManager.getConnection() method and passes URL, USERNAME, and PASSWORD as arguments.
  • The connection will automatically closed by the try-with-resource when finished.
package org.kodejava.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class MSAccessConnect {
    private static final String USERNAME = "admin";
    private static final String PASSWORD = "admin";

    private static final String URL =
            "jdbc:ucanaccess://C:/Users/wayan/Temp/kodejava.mdb;";

    public static void main(String[] args) throws Exception {
        try (Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD)) {
            // Do something with the connection here!
            System.out.println("connection = " + connection);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

The connection object printed from the code above:

connection = net.ucanaccess.jdbc.UcanaccessConnection@63376bed[C:\Users\wayan\Temp\kodejava.mdb]

Before JDK 8, the sun.jdbc.odbc.JdbcOdbcDriver driver can be used to connect to Microsoft Access databases. On the example below we can either connect through the DSN created previously on the Windows system, or we can create it in our program as the long URL below.

In Microsoft Access 2003, to allow the database access to be authenticated the security user account can be added from Tools -> Security -> User and Group Accounts menu.

package org.kodejava.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class MSAccessODBCBridge {
    private static final String USERNAME = "admin";
    private static final String PASSWORD = "admin";
    private static final String DRIVER = "sun.jdbc.odbc.JdbcOdbcDriver";

    // If you want to use you ODBC DSN
    //private static final String URL = "jdbc:odbc:TestDB";
    private static final String URL =
            "jdbc:odbc:Driver={MICROSOFT ACCESS DRIVER (*.mdb, *.accdb)};" +
            "DBQ=C:/Users/wayan/Temp/kodejava.mdb;";

    public static void main(String[] args) throws Exception {
        Class.forName(DRIVER);
        try (Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD)) {
            // Do something with the connection here!
            System.out.println("connection = " + connection);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

The connection object printed from the code above:

connection = sun.jdbc.odbc.JdbcOdbcConnection@4ec4f498

Maven Dependencies

<dependency>
  <groupId>io.github.spannm</groupId>
  <artifactId>ucanaccess</artifactId>
  <version>5.1.1</version>
</dependency>

How do I disable auto-commit mode in JDBC?

The code snippet below shows you how to disable auto-commit operation when executing JDBC commands or queries.

package org.kodejava.jdbc;

import java.sql.*;

public class AutoCommitSettingExample {
    private static final String URL = "jdbc:mysql://localhost/kodejava";
    private static final String USERNAME = "kodejava";
    private static final String PASSWORD = "s3cr*t";

    public static void main(String[] args) {
        // DO: Get a connection to database, we need to obtain the
        // database connection prior to executing any JDBC commands
        try (Connection connection =
                     DriverManager.getConnection(URL, USERNAME, PASSWORD)) {

            // Disable the auto-commit operation. By default, every statement
            // executed against database in JDBC is in auto-commit mode. To
            // disable auto-commit set it to false
            connection.setAutoCommit(false);

            // DO: Execute some other database operation here
            String sql = "DELETE FROM book WHERE id = ?";
            try (PreparedStatement statement = connection.prepareStatement(sql)) {
                statement.setLong(1, 1L);
                statement.executeUpdate();

                // Finally we must call the commit method explicitly to finish
                // all database manipulation operation
                connection.commit();
            } catch (SQLException e) {
                // When some exception occurs rollback the transaction.
                connection.rollback();
                throw e;
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.4.0</version>
</dependency>

Maven Central

How do I drop table from a database?

This example is to show you how to delete or drop a table from your database. Basically we just send a DROP TABLE command and specify the table name to be deleted to the database. The example below show you how to do it in MySQL database.

package org.kodejava.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class DropTableExample {
    private static final String URL = "jdbc:mysql://localhost/kodejava";
    private static final String USERNAME = "kodejava";
    private static final String PASSWORD = "s3cr*t";

    public static void main(String[] args) {
        try (Connection connection =
                     DriverManager.getConnection(URL, USERNAME, PASSWORD)) {

            // To delete a table from database we use the DROP TABLE
            // command and specify the table name to be dropped
            String sql = "DROP TABLE IF EXISTS book";

            // Create a statement
            Statement statement = connection.createStatement();
            // Execute the statement to delete the table
            statement.execute(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.4.0</version>
</dependency>

Maven Central

How do I create a table in a database?

In this example you can see how to create a table in MySQL database. We create a table called book with the following fields, id, isbn, title, published_year and price. We start by creating a connection to the database and execute the create table query.

package org.kodejava.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class CreateTableExample {
    private static final String URL = "jdbc:mysql://localhost/kodejava";
    private static final String USERNAME = "kodejava";
    private static final String PASSWORD = "s3cr*t";

    public static void main(String[] args) {
        try (Connection connection =
                     DriverManager.getConnection(URL, USERNAME, PASSWORD)) {

            String sql = """
                    CREATE TABLE book
                    (
                        id             bigint(20) unsigned NOT NULL AUTO_INCREMENT,
                        isbn           varchar(50)         NOT NULL,
                        title          varchar(100)        NOT NULL,
                        published_year int(11)                      DEFAULT NULL,
                        price          decimal(10, 2)      NOT NULL DEFAULT '0.00',
                        PRIMARY KEY (id)
                    )
                    """;

            Statement statement = connection.createStatement();
            statement.execute(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.4.0</version>
</dependency>

Maven Central