Example usage for java.sql Statement close

List of usage examples for java.sql Statement close

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Introduction

In this page you can find the example usage for java.sql Statement close.

Prototype

void close() throws SQLException;

Source Link

Document

Releases this Statement object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet indexInformation = null;
    DatabaseMetaData meta = conn.getMetaData();

    // The '_' character represents any single character.
    // The '%' character represents any sequence of zero
    // or more characters.
    indexInformation = meta.getIndexInfo(conn.getCatalog(), null, "survey", true, true);
    while (indexInformation.next()) {
        short type = indexInformation.getShort("TYPE");
        switch (type) {
        case DatabaseMetaData.tableIndexClustered:
            System.out.println("tableIndexClustered");
        case DatabaseMetaData.tableIndexHashed:
            System.out.println("tableIndexHashed");
        case DatabaseMetaData.tableIndexOther:
            System.out.println("tableIndexOther");
        case DatabaseMetaData.tableIndexStatistic:
            System.out.println("tableIndexStatistic");
        default://  w w w  . j a va 2 s.  co m
            System.out.println("tableIndexOther");
        }

    }

    st.close();
    conn.close();
}

From source file:InsertRowUpdatableResultSet_MySQL.java

public static void main(String[] args) {
    Connection conn = null;/*  w  w  w  . j  av  a  2 s. co m*/
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        String query = "select id, name from employees";
        stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        rs = stmt.executeQuery(query);
        while (rs.next()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
        // Move cursor to the "insert row"
        rs.moveToInsertRow();
        // Set values for the new row.
        rs.updateString("id", "001");
        rs.updateString("name", "newName");
        // Insert the new row
        rs.insertRow();
        // scroll from the top again
        rs.beforeFirst();
        while (rs.next()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    } finally {
        // release database resources
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

From source file:mx.com.pixup.portal.demo.DemoDisqueraSelect.java

public static void main(String[] args) {
    System.out.println("BIENVENIDO A PIXUP");
    System.out.println("Mantenimiento catlogo disquera");
    System.out.println("Listado de disqueras");

    Connection connection = null;
    Statement statement = null;
    ResultSet resultSet = null;// w  ww.  j av  a  2 s  .c o m
    try {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUsername("root");
        dataSource.setPassword("admin");
        dataSource.setUrl("jdbc:mysql://127.0.0.1:3306/pixup");

        connection = dataSource.getConnection();
        statement = connection.createStatement();

        String sql = "select * from disquera order by nombre desc";

        resultSet = statement.executeQuery(sql);

        System.out.println("ID: \t NOMBRE:");
        while (resultSet.next()) {
            Integer id = resultSet.getInt(1);
            String nombre = resultSet.getString(2);
            System.out.println(id + " \t " + nombre);
        }

    } catch (Exception e) {
        System.out.println("Error en el sistema, intente ms tarde!!" + e.getMessage());
    } finally {
        if (resultSet != null) {
            try {
                resultSet.close();
            } catch (Exception e) {
            }
        }
        if (statement != null) {
            try {
                statement.close();
            } catch (Exception e) {
            }
        }
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception e) {
            }
        }
    }
}

From source file:InsertSuppliers.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//from  www .j av  a2s.c  o  m
    Statement stmt;
    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:com.jt.dbcp.example.BasicDataSourceExample.java

public static void main(String[] args) {
    // First we set up the BasicDataSource.
    // Normally this would be handled auto-magically by
    // an external configuration, but in this example we'll
    // do it manually.
    ///*from   w ww  .ja  v  a 2s  .  c om*/
    String param1 = null;
    String param2 = null;
    if (args.length == 2) {
        param1 = args[0];
        param2 = args[1];
    }

    if (param1 == null) {
        param1 = "jdbc:mysql://localhost:3306/test";
        param2 = "select * from t_user";
    }
    System.out.println("Setting up data source.");
    DataSource dataSource = setupDataSource(param1);
    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(param2);
        System.out.println("Results:");
        int numcols = rset.getMetaData().getColumnCount();
        int count = 0;
        while (rset.next()) {
            for (int i = 1; i <= numcols; i++) {
                System.out.print("\t" + rset.getString(i));
            }
            System.out.println("");
            count++;
            if (count == 10) {
                break;
            }
        }
        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) {
        }
        try {
            shutdownDataSource(dataSource);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

From source file:InsertCoffees.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*from w  ww . ja v  a 2 s  .c o m*/
    Statement stmt;
    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());
    }
}

From source file:InsertRowBug.java

public static void main(String args[]) {

    String url;/* ww w.  ja v a 2  s .c  o  m*/
    // url = "jdbc:odbc:SQL Anywhere 5.0 Sample";
    // url = "jdbc:oracle:thin:@server:1521:db570";
    url = "jdbc:odbc:RainForestDSN";

    String driver;
    //driver = "oracle.jdbc.driver.OracleDriver";
    driver = "sun.jdbc.odbc.JdbcOdbcDriver";

    String user, pass;
    user = "student";
    pass = "student";

    Connection con;
    Statement stmt;
    ResultSet uprs;

    try {
        Class.forName(driver);

    } catch (java.lang.ClassNotFoundException e) {
        System.err.println(e);
        return;
    }

    try {
        con = DriverManager.getConnection(url, user, pass);
        stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        uprs = stmt.executeQuery("SELECT * FROM Music_Recordings");

        // Check the column count
        ResultSetMetaData md = uprs.getMetaData();
        System.out.println("Resultset has " + md.getColumnCount() + " cols.");

        int rowNum = uprs.getRow();
        System.out.println("row1 " + rowNum);
        uprs.absolute(1);
        rowNum = uprs.getRow();
        System.out.println("row2 " + rowNum);
        uprs.next();
        uprs.moveToInsertRow();
        uprs.updateInt(1, 150);
        uprs.updateString(2, "Madonna");
        uprs.updateString(3, "Dummy");
        uprs.updateString(4, "Jazz");
        uprs.updateString(5, "Image");
        uprs.updateInt(6, 5);
        uprs.updateDouble(7, 5);
        uprs.updateInt(8, 15);
        uprs.insertRow();
        uprs.close();
        stmt.close();
        con.close();
    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
    }
}

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

public static void main(String[] args) throws SQLException {
    ///*from   w  w w .  j ava2  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:PrintColumns.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;//w ww  . ja  v  a 2s  . co  m
    String query = "select * from COFFEES";
    Statement stmt;

    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();

        ResultSet rs = stmt.executeQuery(query);
        ResultSetMetaData rsmd = rs.getMetaData();

        PrintColumnTypes.printColTypes(rsmd);
        System.out.println("");

        int numberOfColumns = rsmd.getColumnCount();

        for (int i = 1; i <= numberOfColumns; i++) {
            if (i > 1)
                System.out.print(",  ");
            String columnName = rsmd.getColumnName(i);
            System.out.print(columnName);
        }
        System.out.println("");

        while (rs.next()) {
            for (int i = 1; i <= numberOfColumns; i++) {
                if (i > 1)
                    System.out.print(",  ");
                String columnValue = rs.getString(i);
                System.out.print(columnValue);
            }
            System.out.println("");
        }

        stmt.close();
        con.close();
    } catch (SQLException ex) {
        System.err.print("SQLException: ");
        System.err.println(ex.getMessage());
    }
}

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

public static void main(String[] args) {
    ///*w ww . ja v a  2s .com*/
    // 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 and register the PoolingDriver.
    // 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 driver.");
    try {
        setupDriver(args[0]);
    } catch (Exception e) {
        e.printStackTrace();
    }
    System.out.println("Done.");

    //
    // Now, we can use JDBC as we normally would.
    // Using the connect string
    //  jdbc:apache:commons:dbcp:example
    // The general form being:
    //  jdbc:apache:commons:dbcp:<name-of-pool>
    //

    Connection conn = null;
    Statement stmt = null;
    ResultSet rset = null;

    try {
        System.out.println("Creating connection.");
        //pool
        conn = DriverManager.getConnection("jdbc:apache:commons:dbcp:example");
        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("");
        }
    } 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) {
        }
    }

    // Display some pool statistics
    try {
        printDriverStats();
    } catch (Exception e) {
        e.printStackTrace();
    }

    // closes the pool
    try {
        shutdownDriver();
    } catch (Exception e) {
        e.printStackTrace();
    }
}