MYSQL选择相同的列名作为别名，因为Number不起作用

Question

I have create query something like bellow :

SELECT col_1 as "0", Col_2 as "1" FROM table

It is working when run in phpmyadmin but not work when run through php. But when change as "zero" as "one" its working fine.

Any solution or suggestion.

I am using wordpress

$results = $wpdb->get_results( 
                'SELECT t.id,qrnumber ,
                tu.display_name,if(t.status=0,"---","Used") as "3" 
                FROM '.$table.' t 
                LEFT JOIN '.$table_wp.' tu ON tu.ID=t.user_id', ARRAY_A 
            );

Thanks

Answer 1

您缺少逗号

SELECT col_1 as "0", Col_2 as "1" FROM table