Example usage for java.sql ResultSet next

Introduction

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

Prototype

boolean next() throws SQLException;

Source Link

Document

Moves the cursor forward one row from its current position.

Usage

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()) {
        String id = rs.getString("id");
        System.out.println(id);//from   w  w w .  jav  a 2 s .  co m
    }
    // Move cursor to the first row
    rs.first();
    // Get data at cursor
    String id = rs.getString("id");
    System.out.println(id);

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

---

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()) {
        String id = rs.getString("id");
        System.out.println(id);/*from w  ww  . j  a v a  2 s . c om*/
    }
    // Move cursor backward
    while (rs.previous()) {
        // Get data at cursor
        String id = rs.getString("id");
        System.out.println(id);
    }

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

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From source file:TestOCIApp.java

public static void main(String args[]) throws ClassNotFoundException, SQLException {

    Class.forName("oracle.jdbc.driver.OracleDriver");
    // or you can use:
    //  DriverManager.registerDriver(
    //   new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:oci8:@dssnt01", "scott", "tiger");

    Statement stmt = conn.createStatement();
    ResultSet rset = stmt.executeQuery("select 'Hello OCI driver tester '||USER||'!' result from dual");
    while (rset.next())
        System.out.println(rset.getString(1));
    rset.close();//from www .  j  a  v a2s.co m
    stmt.close();
    conn.close();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    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')");

    DatabaseMetaData meta = conn.getMetaData();

    ResultSet rs = meta.getImportedKeys(conn.getCatalog(), null, "survey");
    while (rs.next()) {
        String fkTableName = rs.getString("FKTABLE_NAME");
        String fkColumnName = rs.getString("FKCOLUMN_NAME");
        int fkSequence = rs.getInt("KEY_SEQ");
        System.out.println("getExportedKeys(): fkTableName=" + fkTableName);
        System.out.println("getExportedKeys(): fkColumnName=" + fkColumnName);
        System.out.println("getExportedKeys(): fkSequence=" + fkSequence);
    }//w  w  w .j  av a 2 s.com

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

---

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
    Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL", "yourName", "mypwd");
    Statement stmt = conn.createStatement();

    String streamingDataSql = "CREATE TABLE XML_Data (id INTEGER, Data LONG)";
    try {//w  ww.ja  va  2 s  . c o  m
        stmt.executeUpdate("DROP TABLE XML_Data");
    } catch (SQLException se) {
        if (se.getErrorCode() == 942)
            System.out.println("Error dropping XML_Data table:" + se.getMessage());
    }
    stmt.executeUpdate(streamingDataSql);

    File f = new File("employee.xml");
    long fileLength = f.length();
    FileInputStream fis = new FileInputStream(f);
    PreparedStatement pstmt = conn.prepareStatement("INSERT INTO XML_Data VALUES (?,?)");
    pstmt.setInt(1, 100);
    pstmt.setAsciiStream(2, fis, (int) fileLength);
    pstmt.execute();
    fis.close();
    ResultSet rset = stmt.executeQuery("SELECT Data FROM XML_Data WHERE id=100");
    if (rset.next()) {
        InputStream xmlInputStream = rset.getAsciiStream(1);
        int c;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        while ((c = xmlInputStream.read()) != -1)
            bos.write(c);
        System.out.println(bos.toString());
    }
    conn.close();
}

---

From source file:Main.java

public static void main(String[] argv) throws Exception {

    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);//from w  ww  . j  a  va  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);

    try {
        SQLWarning warning = connection.getWarnings();
        while (warning != null) {
            String message = warning.getMessage();
            String sqlState = warning.getSQLState();
            int errorCode = warning.getErrorCode();
            warning = warning.getNextWarning();
        }
        Statement stmt = connection.createStatement();
        warning = stmt.getWarnings();
        if (warning != null) {

        }
        ResultSet resultSet = stmt.executeQuery("SELECT * FROM my_table");
        while (resultSet.next()) {
            warning = resultSet.getWarnings();
            if (warning != null) {
            }
        }
    } catch (SQLException e) {
    }

}

---

From source file:TestOCINet8App.java

public static void main(String args[]) throws ClassNotFoundException, SQLException {

    Class.forName("oracle.jdbc.driver.OracleDriver");
    // or you can use:
    //  DriverManager.registerDriver(
    //   new oracle.jdbc.driver.OracleDriver());
    Connection conn = DriverManager.getConnection("jdbc:oracle:oci8:@(DESCRIPTION = "
            + "(ADDRESS_LIST = (ADDRESS = " + "(PROTOCOL = TCP)(HOST = dssw2k01)(PORT = 1521)))"
            + "(CONNECT_DATA = (SERVICE_NAME = dssw2k01)))", "scott", "tiger");

    Statement stmt = conn.createStatement();
    ResultSet rset = stmt.executeQuery("select 'Hello OCI driver tester '||USER||'!' result from dual");
    while (rset.next())
        System.out.println(rset.getString(1));
    rset.close();//from w  w w. j a  v  a 2  s  . c  o m
    stmt.close();
    conn.close();
}

---

From source file:ConnPool.java

public static void main(String[] args) throws Exception {
    OracleConnectionPoolDataSource ocpds = new OracleConnectionPoolDataSource();
    ocpds.setURL("jdbc:oracle:thin:@localhost:1521:ORCL");
    ocpds.setUser("user");
    ocpds.setPassword("password");

    PooledConnection pc_1 = ocpds.getPooledConnection();

    Connection conn_1 = pc_1.getConnection();
    Statement stmt = conn_1.createStatement();

    ResultSet rs = stmt.executeQuery("SELECT count(*) FROM v$session WHERE username = 'SYS'");
    rs.next();
    String msg = "Total connections after ";
    System.out.println(msg + "conn_1: " + rs.getString(1));

    Connection conn_2 = pc_1.getConnection();
    stmt = conn_2.createStatement();/*from   www.  j ava2s  . com*/
    rs = stmt.executeQuery("SELECT count(*) FROM v$session WHERE username = 'SYS'");
    rs.next();
    System.out.println(msg + "conn_2: " + rs.getString(1));

    PooledConnection pc_2 = ocpds.getPooledConnection();
    rs = stmt.executeQuery("SELECT count(*) FROM v$session WHERE username = 'SYS'");
    rs.next();
    System.out.println(msg + "pc_2: " + rs.getString(1));

    conn_1.close();
    conn_2.close();
    pc_1.close();
    pc_2.close();
}

---

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);/*from ww  w .java  2  s. c  om*/
    }
    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();
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    String url = "jdbc:mysql://localhost/testdb";
    String username = "root";
    String password = "";
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = null;/*w w w  .  j  av  a 2 s . c  o  m*/
    try {
        conn = DriverManager.getConnection(url, username, password);
        conn.setAutoCommit(false);

        Statement st = conn.createStatement();
        st.execute("INSERT INTO orders (username, order_date) VALUES ('java', '2007-12-13')",
                Statement.RETURN_GENERATED_KEYS);

        ResultSet keys = st.getGeneratedKeys();
        int id = 1;
        while (keys.next()) {
            id = keys.getInt(1);
        }
        PreparedStatement pst = conn.prepareStatement(
                "INSERT INTO order_details (order_id, product_id, quantity, price) VALUES (?, ?, ?, ?)");
        pst.setInt(1, id);
        pst.setString(2, "1");
        pst.setInt(3, 10);
        pst.setDouble(4, 100);
        pst.execute();

        conn.commit();
        System.out.println("Transaction commit...");
    } catch (SQLException e) {
        if (conn != null) {
            conn.rollback();
            System.out.println("Connection rollback...");
        }
        e.printStackTrace();
    } finally {
        if (conn != null && !conn.isClosed()) {
            conn.close();
        }
    }
}

---

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