+-------------------------------------------------------------------------+
| CONCAT_WS('::', p.isMobile, p.contact_phone_id, p.contact_phone_number) |
+-------------------------------------------------------------------------+
| 0::1::123                                                               |
| 1::2::456                                                               |
| 0::3::789                                                               |
| 1::4::987                                                               |
| 0::5::654                                                               |
| 0::6::321                                                               |
| 1::7::123                                                               |
| 1::11::456                                                              |
+-------------------------------------------------------------------------+

Row 1: The first column is 0, the second column is 1, the third column is 123
Row 2: The first column is 1, the second column is 2, the third column is 456
Row 3: The first column is 0, the second column is 3, the third column is 789