SQL - update table problem...

Hi,

first i'm sorry if this message appears twice. first time didn't get through
because i wasn't registered.

i'm trying to do update on multiple tables but don't know how.
is something like this posible with postgresql?

update table1
join table2 on (table1.id=table2.t1)
join table3 on (table2.id=table3.t2)
set table1.name='test', table2.sum=table1.x+table2.y,
table3.cell='123456789'
where table1.id=6

i know that this syntax is not supported with postgres but i tried to
rewrite the code using this synopsis:

UPDATE [ ONLY ] table SET column = { expression | DEFAULT } [, ...]
[ FROM fromlist ]
[ WHERE condition ]

i failed again.

thanks for help

_________________________________________________________________
Express yourself instantly with MSN Messenger! Download today it's FREE!
http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/