Example usage for java.sql Connection createStatement

List of usage examples for java.sql Connection createStatement

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Introduction

In this page you can find the example usage for java.sql Connection createStatement.

Prototype

Statement createStatement() throws SQLException;

Source Link

Document

Creates a Statement object for sending SQL statements to the database.

Usage

From source file:dev.utils.db.dbcp.ManualPoolingDataSource.java

public static void main(String[] args) {

    ////from ww w. jav  a  2 s  .  c om
    // Now, we can use JDBC DataSource as we normally would.
    //
    Connection conn = null;
    Statement stmt = null;
    ResultSet rset = null;

    try {
        System.out.println("Creating connection.");
        //conn = dataSource.getConnection();
        System.out.println("Creating statement.");
        stmt = conn.createStatement();
        System.out.println("Executing statement.");
        rset = stmt.executeQuery(args[1]);
        System.out.println("Results:");
        int numcols = rset.getMetaData().getColumnCount();
        while (rset.next()) {
            for (int i = 1; i <= numcols; i++) {
                System.out.print("\t" + rset.getString(i));
            }
            System.out.println("");
        }
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try {
            rset.close();
        } catch (Exception e) {
        }
        try {
            stmt.close();
        } catch (Exception e) {
        }
        try {
            conn.close();
        } catch (Exception e) {
        }
    }
}

From source file:SimpleProgramToAccessOracleDatabase.java

public static void main(String[] args) throws SQLException {
    Connection conn = null; // connection object
    Statement stmt = null; // statement object
    ResultSet rs = null; // result set object
    try {//from   w w  w . j av  a2 s  .c  o m
        conn = getConnection(); // without Connection, can not do much
        // create a statement: This object will be used for executing
        // a static SQL statement and returning the results it produces.
        stmt = conn.createStatement();
        // start a transaction
        conn.setAutoCommit(false);

        // create a table called cats_tricks
        stmt.executeUpdate("CREATE TABLE cats_tricks " + "(name VARCHAR2(30), trick VARCHAR2(30))");
        // insert two new records to the cats_tricks table
        stmt.executeUpdate("INSERT INTO cats_tricks VALUES('mono', 'r')");
        stmt.executeUpdate("INSERT INTO cats_tricks VALUES('mono', 'j')");

        // commit the transaction
        conn.commit();

        // set auto commit to true (from now on every single
        // statement will be treated as a single transaction
        conn.setAutoCommit(true);

        // get all of the the records from the cats_tricks table
        rs = stmt.executeQuery("SELECT name, trick FROM cats_tricks");

        // iterate the result set and get one row at a time
        while (rs.next()) {
            String name = rs.getString(1); // 1st column in query
            String trick = rs.getString(2); // 2nd column in query
            System.out.println("name=" + name);
            System.out.println("trick=" + trick);
            System.out.println("==========");
        }
    } catch (ClassNotFoundException ce) {
        // if the driver class not found, then we will be here
        System.out.println(ce.getMessage());
    } catch (SQLException e) {
        // something went wrong, we are handling the exception here
        if (conn != null) {
            conn.rollback();
            conn.setAutoCommit(true);
        }

        System.out.println("--- SQLException caught ---");
        // iterate and get all of the errors as much as possible.
        while (e != null) {
            System.out.println("Message   : " + e.getMessage());
            System.out.println("SQLState  : " + e.getSQLState());
            System.out.println("ErrorCode : " + e.getErrorCode());
            System.out.println("---");
            e = e.getNextException();
        }
    } finally { // close db resources
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception e) {
        }

    }
}

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;
    Statement stmt = null;//from   w  w w  .j  av a2 s.c o m
    try {
        // Register JDBC driver
        Class.forName(JDBC_DRIVER);

        // Open a connection
        System.out.println("Connecting to database...");
        conn = DriverManager.getConnection(DB_URL, USER, PASS);

        // Execute a query
        System.out.println("Creating statement...");
        stmt = conn.createStatement();
        String sql;
        sql = "SELECT id, first, last, age FROM Employees";
        stmt.executeUpdate(
                "CREATE TABLE Employees ( id INTEGER IDENTITY, first VARCHAR(256),  last VARCHAR(256),age INTEGER)");
        stmt.executeUpdate("INSERT INTO Employees VALUES(1,'Jack','Smith', 100)");

        ResultSet rs = stmt.executeQuery(sql);

        // Extract data from result set
        while (rs.next()) {
            // Retrieve by column name
            int id = rs.getInt("id");
            int age = rs.getInt("age");
            String first = rs.getString("first");
            String last = rs.getString("last");

            System.out.print("ID: " + id);
            System.out.print(", Age: " + age);
            System.out.print(", First: " + first);
            System.out.println(", Last: " + last);
        }
        // Clean-up environment
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // finally block used to close resources
        try {
            if (stmt != null)
                stmt.close();
        } catch (SQLException se2) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
    System.out.println("Goodbye!");
}

From source file:ExecuteMethod.java

public static void main(String[] args) {
    Connection conn = null;
    Statement stmt = null;//from ww  w. j  ava 2s .com
    ResultSet rs = null;
    boolean executeResult;
    try {
        String driver = "oracle.jdbc.driver.OracleDriver";
        Class.forName(driver).newInstance();
        System.out.println("Connecting to database...");
        String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:ORCL";
        conn = DriverManager.getConnection(jdbcUrl, "test", "mypwd");
        stmt = conn.createStatement();

        String sql = "INSERT INTO Employees VALUES" + "(1,'G','4351',{d '1996-12-31'},500)";
        executeResult = stmt.execute(sql);
        processExecute(stmt, executeResult);

        sql = "SELECT * FROM Employees ORDER BY hiredate";
        executeResult = stmt.execute(sql);
        processExecute(stmt, executeResult);
    } catch (Exception e) {
        e.printStackTrace();

    } finally {
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
}

From source file:com.jt.dbcp.example.ManualPoolingDataSourceExample.java

public static void main(String[] args) throws SQLException {
    ///*from ww w.  ja  va  2  s . c om*/
    // First we load the underlying JDBC driver.
    // You need this if you don't use the jdbc.drivers
    // system property.
    //
    System.out.println("Loading underlying JDBC driver.");
    try {
        Class.forName("com.mysql.jdbc.Driver");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
    System.out.println("Done.");

    //
    // Then, we set up the PoolingDataSource.
    // Normally this would be handled auto-magically by
    // an external configuration, but in this example we'll
    // do it manually.
    //
    System.out.println("Setting up data source.");
    DataSource dataSource = setupDataSource(args[0]);
    System.out.println("Done.");

    //
    // Now, we can use JDBC DataSource as we normally would.
    //
    Connection conn = null;
    Statement stmt = null;
    ResultSet rset = null;

    try {
        System.out.println("Creating connection.");
        conn = dataSource.getConnection();
        System.out.println("Creating statement.");
        stmt = conn.createStatement();
        System.out.println("Executing statement.");
        rset = stmt.executeQuery(args[1]);
        System.out.println("Results:");
        int numcols = rset.getMetaData().getColumnCount();
        int count = 0;
        while (rset.next()) {
            count++;
            if (count == 10) {
                break;
            }
            for (int i = 1; i <= numcols; i++) {
                System.out.print("\t" + rset.getString(i));
            }
            System.out.println("");
        }
        printDataSourceStats(dataSource);
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try {
            if (rset != null)
                rset.close();
        } catch (Exception e) {
        }
        try {
            if (stmt != null)
                stmt.close();
        } catch (Exception e) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (Exception e) {
        }
        //            shutdownDataSource(dataSource);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = null;
    Properties info = new Properties();
    // info.put("proxy_type", "4"); // SSL Tunneling
    info.put("proxy_host", "[proxy host]");
    info.put("proxy_port", "[proxy port]");
    info.put("proxy_user", "[proxy user]");
    info.put("proxy_password", "[proxy password]");
    info.put("user", "[db user]");
    info.put("password", "[db pass word]");
    conn = DriverManager.getConnection("jdbc:mysql://[db host]/", info);

    Statement stmt = conn.createStatement();
    ResultSet rs = stmt.executeQuery("Select NOW()");
    rs.next();/* ww  w  .  j  a v a2 s.  co  m*/
    System.out.println("Data- " + rs.getString(1));
    rs.close();
    stmt.close();
    conn.close();
}

From source file:Main.java

public static void main(String[] args) throws ClassNotFoundException, SQLException {
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/booltest", "booltest", "booltest");
    conn.prepareStatement("create table booltest (id bigint, truefalse varchar(10));").execute();
    PreparedStatement stmt = conn.prepareStatement("insert into booltest (id, truefalse) values (?, ?);");
    stmt.setLong(1, (long) 123);
    stmt.setBoolean(2, true);//from   w w w .  j  a  v  a  2  s . c  o m
    stmt.execute();
    stmt.setLong(1, (long) 456);
    stmt.setBoolean(2, false);
    stmt.execute();
    ResultSet rs = conn.createStatement().executeQuery("select id, truefalse from booltest");
    while (rs.next()) {
        System.out.println(rs.getLong(1) + " => " + rs.getBoolean(2));
    }
}

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;
    Statement stmt = null;/*ww  w. java 2  s.c  o  m*/
    try {
        // STEP 2: Register JDBC driver
        Class.forName(JDBC_DRIVER);

        // STEP 3: Open a connection
        System.out.println("Connecting to database...");
        conn = DriverManager.getConnection(DB_URL, USER, PASS);

        // STEP 4: Execute a query
        System.out.println("Creating statement...");
        stmt = conn.createStatement();
        String sql;
        sql = "SELECT id, first, last, age FROM Employees";
        stmt.executeUpdate(
                "CREATE TABLE Employees ( id INTEGER IDENTITY, first VARCHAR(256),  last VARCHAR(256),age INTEGER)");
        stmt.executeUpdate("INSERT INTO Employees VALUES(1,'Jack','Smith', 100)");

        ResultSet rs = stmt.executeQuery(sql);

        // STEP 5: Extract data from result set
        while (rs.next()) {
            // Retrieve by column name
            int id = rs.getInt("id");
            int age = rs.getInt("age");
            String first = rs.getString("first");
            String last = rs.getString("last");

            System.out.print("ID: " + id);
            System.out.print(", Age: " + age);
            System.out.print(", First: " + first);
            System.out.println(", Last: " + last);
        }
        // STEP 6: Clean-up environment
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // finally block used to close resources
        try {
            if (stmt != null)
                stmt.close();
        } catch (SQLException se2) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
    System.out.println("Goodbye!");
}

From source file:InsertSuppliers.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;
    Statement stmt;//from   www . j  a  va  2s  . c om
    String query = "select SUP_NAME, SUP_ID from SUPPLIERS";

    try {
        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {
        con = DriverManager.getConnection(url, "myLogin", "myPassword");

        stmt = con.createStatement();

        stmt.executeUpdate("insert into SUPPLIERS " + "values(49, 'Superior Coffee', '1 Party Place', "
                + "'Mendocino', 'CA', '95460')");

        stmt.executeUpdate("insert into SUPPLIERS " + "values(101, 'Acme, Inc.', '99 Market Street', "
                + "'Groundsville', 'CA', '95199')");

        stmt.executeUpdate("insert into SUPPLIERS " + "values(150, 'The High Ground', '100 Coffee Lane', "
                + "'Meadows', 'CA', '93966')");

        ResultSet rs = stmt.executeQuery(query);

        System.out.println("Suppliers and their ID Numbers:");
        while (rs.next()) {
            String s = rs.getString("SUP_NAME");
            int n = rs.getInt("SUP_ID");
            System.out.println(s + "   " + n);
        }

        stmt.close();
        con.close();

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
    }
}

From source file:InsertCoffees.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;
    Statement stmt;//ww  w  .j  a  v a2s. c o m
    String query = "select COF_NAME, PRICE from COFFEES";

    try {
        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        con = DriverManager.getConnection(url, "myLogin", "myPassword");

        stmt = con.createStatement();

        stmt.executeUpdate("insert into COFFEES " + "values('Colombian', 00101, 7.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('French_Roast', 00049, 8.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('Espresso', 00150, 9.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('Colombian_Decaf', 00101, 8.99, 0, 0)");

        stmt.executeUpdate("insert into COFFEES " + "values('French_Roast_Decaf', 00049, 9.99, 0, 0)");

        ResultSet rs = stmt.executeQuery(query);

        System.out.println("Coffee Break Coffees and Prices:");
        while (rs.next()) {
            String s = rs.getString("COF_NAME");
            float f = rs.getFloat("PRICE");
            System.out.println(s + "   " + f);
        }

        stmt.close();
        con.close();

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
    }
}