On Mon, 24 Mar 2003, Correia, Carla wrote:
> My problem is joins. I've seen the syntax on joins and have sucessefully
> used SQLs with joins, but I've got some other big SQL statements using many
> and complex
> joins.
> Simplified example:
>
> select G.SELID, G.TEXT,
> L.ID as SELLEVELID , L.SELLEVEL, L.LEVELJOIN, L.LEVELTEXT,
> C.ID as KRITERIENFELDID, C.SELFLD
> from G, L, C
> where
> and G.SELID = L.SELID (+)
> and L.SELID = C.SELID (+)
> and L.SELLEVEL = C.SELLEVEL (+)
>
> How can i write this in Postgres? As the problem is that I use one same
> table for varios joins. This is a problem in Postgres. Any ideas?
I don't really understand the question, it looks like two levels of outer
join to me, the first between g and l using selid and the second between
that and c using selid and sellevel. What do you mean "one same table for
various joins"?
