Example usage for java.sql Statement execute

Introduction

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

Prototype

boolean execute(String sql, String columnNames[]) throws SQLException;

Source Link

Document

Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.

Usage

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;//from   w w w. j a  va2 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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From source file:com.noelios.restlet.ext.jdbc.JdbcClientHelper.java

/**
 * Helper/*from  w  w  w.j av  a2s  .com*/
 * 
 * @param connection
 * @param returnGeneratedKeys
 * @param sqlRequests
 * @return the result of the last executed SQL request
 */
private JdbcResult handleSqlRequests(Connection connection, boolean returnGeneratedKeys,
        List<String> sqlRequests) {
    JdbcResult result = null;
    try {
        connection.setAutoCommit(true);
        final Statement statement = connection.createStatement();
        for (final String sqlRequest : sqlRequests) {
            statement.execute(sqlRequest,
                    returnGeneratedKeys ? Statement.RETURN_GENERATED_KEYS : Statement.NO_GENERATED_KEYS);
            result = new JdbcResult(statement);
        }

        // Commit any changes to the database
        if (!connection.getAutoCommit()) {
            connection.commit();
        }
    } catch (SQLException se) {
        getLogger().log(Level.WARNING, "Error while processing the SQL requests", se);
        try {
            if (!connection.getAutoCommit()) {
                connection.rollback();
            }
        } catch (SQLException se2) {
            getLogger().log(Level.WARNING, "Error while rollbacking the transaction", se);
        }
    }
    return result;

}

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