Example usage for java.sql ResultSet previous

Introduction

In this page you can find the example usage for java.sql ResultSet previous.

Prototype

boolean previous() throws SQLException;

Source Link

Document

Moves the cursor to the previous row in this ResultSet object.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/* w  w w  . ja  v a 2 s . c om*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    // Create a scrollable result set
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Move cursor forward
    while (resultSet.next()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor backward
    while (resultSet.previous()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor to the first row
    resultSet.first();

}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/*  www.jav  a  2  s  . co  m*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    // Create a scrollable result set
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Move cursor forward
    while (resultSet.next()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor backward
    while (resultSet.previous()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor to the beginning, before the first row.
    // cursor position is 0.
    resultSet.beforeFirst();
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/*from   w w  w . j  a  v  a2 s .  c o  m*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    // Create a scrollable result set
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Move cursor forward
    while (resultSet.next()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor backward
    while (resultSet.previous()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor down 5 rows from the current row. If this moves cursor beyond the last row, cursor is put after the last row
    resultSet.relative(5);

}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);/* w w  w .jav  a  2  s  .c  om*/

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    // Create a scrollable result set
    Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");

    // Move cursor forward
    while (resultSet.next()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor backward
    while (resultSet.previous()) {
        // Get data at cursor
        String s = resultSet.getString(1);
    }

    // Move cursor to the second row
    resultSet.absolute(2);

    // Move cursor to the last row
    resultSet.absolute(-1);

    // Move cursor to the second last row
    resultSet.absolute(-2);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);

    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,null)");
    st.executeUpdate("insert into survey (id,name ) values (3,'Tom')");
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    // Move cursor forward
    while (rs.next()) {
        // Get data at cursor
        String id = rs.getString(1);
        String name = rs.getString(2);
    }/*from   w  ww .j a va  2 s  .  c om*/

    // Move cursor backward
    while (rs.previous()) {
        // Get data at cursor
        String id = rs.getString(1);
        String name = rs.getString(2);
    }

    // Move cursor to the first row
    rs.first();

    // Move cursor to the last row
    rs.last();

    // Move cursor to the end, after the last row
    rs.afterLast();

    // Move cursor to the beginning, before the first row.
    // cursor position is 0.
    rs.beforeFirst();

    // Move cursor to the second row
    rs.absolute(2);

    // Move cursor to the last row
    rs.absolute(-1);

    // Move cursor to the second-to-last row
    rs.absolute(-2);

    // Move cursor down 5 rows from the current row. If this moves
    // cursor beyond the last row, cursor is put after the last row
    rs.relative(5);

    // Move cursor up 3 rows from the current row. If this moves
    // cursor beyond the first row, cursor is put before the first row
    rs.relative(-3);

    rs.close();
    st.close();
    conn.close();

}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);

    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,null)");
    st.executeUpdate("insert into survey (id,name ) values (3,'Tom')");
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    // extract data from the ResultSet scroll from top
    while (rs.next()) {
        String id = rs.getString(1);
        String name = rs.getString(2);
        System.out.println("id=" + id + " name=" + name);
    }//from   ww  w .  ja  v a  2 s.  c o m
    System.out.println("---------");

    // scroll from the bottom
    rs.afterLast();
    while (rs.previous()) {
        String id = rs.getString(1);
        String name = rs.getString(2);
        System.out.println("id=" + id + " name=" + name);
    }

    rs.close();
    st.close();
    conn.close();

}

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From source file:ScrollableRs.java

public static void main(String[] args) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:ORCL";
    Connection conn = DriverManager.getConnection(jdbcUrl, "yourName", "mypwd");
    Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
    ResultSet rs = stmt.executeQuery("SELECT ssn, name, salary FROM EMPLOYEES");
    while (rs.next()) {
        printRow(rs);//  w ww .ja  va2s .  c  o  m
    }
    rs.afterLast();
    System.out.println("\"After-last-row\" = " + rs.isAfterLast());
    rs.beforeFirst();
    System.out.println("\"Before-first-row\" = " + rs.isBeforeFirst());
    rs.first();
    printRow(rs);
    rs.last();
    printRow(rs);
    rs.previous();
    printRow(rs);

    rs.next();
    printRow(rs);

    rs.absolute(3);
    printRow(rs);

    rs.relative(-2);
    printRow(rs);
    if (conn != null)
        conn.close();
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Class.forName("com.mysql.jdbc.Driver");
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/testdb", "root", "");

    Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
            ResultSet.CONCUR_READ_ONLY);
    ResultSet resultSet = statement.executeQuery("SELECT * FROM products");
    while (resultSet.next()) {
        String productCode = resultSet.getString("product_code");
        String productName = resultSet.getString("product_name");
        int quantity = resultSet.getInt("quantity");
        double price = resultSet.getDouble("price");

        System.out.println(productCode + "\t" + productName + "\t" + quantity + "\t" + price);
    }/*w ww.  j  a v  a2s . co  m*/

    while (resultSet.previous()) {
        String productCode = resultSet.getString("product_code");
        String productName = resultSet.getString("product_name");
        int quantity = resultSet.getInt("quantity");
        double price = resultSet.getDouble("price");

        System.out.println(productCode + "\t" + productName + "\t" + quantity + "\t" + price);
    }
    connection.close();
}

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From source file:ReverseSelect.java

public static void main(String argv[]) {
    Connection con = null;/*from  w w w  .j a v  a 2 s .  co  m*/

    try {
        String url = "jdbc:msql://carthage.imaginary.com/ora";
        String driver = "com.imaginary.sql.msql.MsqlDriver";
        Properties p = new Properties();
        Statement stmt;
        ResultSet rs;

        p.put("user", "borg");
        Class.forName(driver).newInstance();
        con = DriverManager.getConnection(url, "borg", "");
        stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
        rs = stmt.executeQuery("SELECT * from test ORDER BY test_id");
        // as a new ResultSet, rs is currently positioned
        // before the first row
        System.out.println("Got results:");
        // position rs after the last row
        rs.afterLast();
        while (rs.previous()) {
            int a = rs.getInt("test_id");
            String str = rs.getString("test_val");

            System.out.print("\ttest_id= " + a);
            System.out.println("/str= '" + str + "'");
        }
        System.out.println("Done.");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (con != null) {
            try {
                con.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}

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From source file:DemoScrollableResultSet_MySQL.java

public static void main(String[] args) {
    Connection conn = null;//from   ww w. ja v a 2s  .  c om
    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_READ_ONLY);
        rs = stmt.executeQuery(query);
        // extract data from the ResultSet scroll from top
        while (rs.next()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
        // scroll from the bottom
        rs.afterLast();
        while (rs.previous()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // release database resources
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

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