LEFT JOIN Returns all rows even if we restrict columns values

[Moderns]

Dear Respected Members,

I have problem with LEFT JOIN that it brings the whole columns from tables even if I limit to specific column ids :( I am forced to use the LEFT JOIN because in table B - column "id" - is not always exists in table A.

Please could you advise how can I do the following:

I have two tables (Table A and Table B).

Table A as below:

id colA1 colA2
== ===== =====
1 x y
2 x y
3 x y
4 x y
5 x y
6 x y
7 x y

Table B as below:

id colB1 colB2
== ===== =====
2 a a
2 a b
2 a c
4 b d
4 b e

I want to LEFT JOIN both tables to get the result as below:

table A join table B:

id colA1 colA2 colB1 colB2
== ===== ===== ===== =====
1 x y - -
2 x y a a
2 x y a b
2 x y a c
3 x y - -
4 x y a d
4 x y a e
5 x y - -

I made this query:

$sql = 'SELECT A.colA1, A.colA2, B.colB1, B.colB2 FROM
        A LEFT JOIN B ON
            A.id=B.id AND
        A.id IN(1,2,3,4,5)';

The problem this query returns LEFT JOIN of all rows (1,2,3,4,5,6,7), Why? How can I restrict to first 5 rows?

Thanks.

[rch1231]

Hello,
Try this:

    $sql = 'SELECT A.id, A.colA1, A.colA2, B.colB1, B.colB2 FROM
    A LEFT JOIN B ON
    A.id=B.id 
    where A.id IN(1,2,3,4,5)';