how to implement sql in wordpress code ?

i try this sql syntax in phpmyadmin and it work.
this the code

[Code moderated as per the Forum Rules. Please use the pastebin]

and the result is

| post_id | year       | manufacturer      | model    |
    ------------------------------------------------------
    |   20    | 2005       | Audi Manufacturer | Audi     |
    |   35    | 2005       | Audi Manufacturer | Audi A6  |

how to implement that sql in wordpress code ?

I tried the code below and nothing happens

[Code moderated as per the Forum Rules. Please use the pastebin]

can you help me , please ?
thanks