Question

I have 2 joined tables, each one has a primary key column named id.

SELECT t1.*, t2.* from t1 join t2 on t1.fk_id=t2.id

When I run the query above, both id fields are selected (t1.id and t2.id). My question is, how can I select the correct ID while I am looping through the result set? If I select $result->id, I will get the t2.id. Is there any way that I can get the t1.id also without explicitly selecting it in the query (i.e. t1.id as t1_id?) Also, please, let us know about some of your practices when it comes to naming the primary key columns.

Thanks!

Answer 1

SELECT t1.id as id1, t2.id as id2, t1.*, t2.* from t1 join t2 on t1.fk_id=t2.id