Re: difference nested select union

In <53be0c$9jf@cssun.mathcs.emory.edu> marcog@ctonline.it (marco greco) writes: >Bryan, > You may be relieved in knowing that the original poster was >referring to b.id being null in the second query, rather than a.id in >the first! :-) Oh poo. I really must learn to read the question first before opening my big typing-finger. Used to do the same thing at school too, which explains why I could only get a job in the computer industry afterwards.... Bryan Tonnet batonnet@zeta.org.au