I have two tables :

the first one called **categories** with 3 columns "administrators,id,name".

```
administrators | id  | name
1              | 23  | David
2              | 24  | Jemmy
3              | 25  | Frank
NULL           | 26  | GLOBAL1
NULL           | 27  | GLOBAL2
NULL           | 28  | GLOBAL3

```

The second table is named **disabledcategories** with two columns "administrators" and "id".

```
administrators | id 
1              | 26  > ( GLOBAL1 )
1              | 27  > ( GLOBAL2 )

2              | 26  > ( GLOBAL1 )
2              | 27  > ( GLOBAL2 )

3              | 26  > ( GLOBAL1 )
3              | 27  > ( GLOBAL2 )
3              | 28  > ( GLOBAL3 )

```

And i want to select "administrators = LIKE 1 OR NULL" from **categories** where there is not in **disabledcategories** 

Desired Output like this : 

```
administrators | id  | name
1              | 23  | David
NULL           | 28  | GLOBAL3

```

How can i do that ? Thank you so much in advance !