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问题形象

String connectionUrl = "jdbc:sqlserver://localhost;databaseName=QLSV;user=sa;password=12345";

try (Connection con = DriverManager.getConnection(connectionUrl);
    Statement stmt = con.createStatement();) {
    String SQL = "SELECT TOP 10 * FROM USERS";
    ResultSet rs = stmt.executeQuery(SQL);

    // Iterate through the data in the result set and display it.
    while (rs.next()) {
        System.out.println(rs.getString("USERNAME") + " " + rs.getString("PASSWORD"));
    }
} // Handle any errors that may have occurred.
catch (SQLException e) {
    e.printStackTrace();
}