Re: Update on existence?

> ------------------
>   select id, username, settings from sessions where id='foobar'
this is handled using this link:
http://www.postgresql.org/docs/8.2/interactive/plpgsql-declarations.html#PLPGSQL-DECLARATION-ROWTYPES
However, I seen it mentioned that there is a variable called FOUND that may be used for this also.
It might be worth reading up on.
http://www.postgresql.org/docs/8.2/interactive/plpgsql-statements.html#PLPGSQL-STATEMENTS-SQL-NORESULT

>   If a result was found
this can be achieved from this link:
http://www.postgresql.org/docs/8.2/interactive/plpgsql-control-structures.html#PLPGSQL-CONDITIONALS


>      update sessions set last_access=current_timestamp where id='foobar'
this is just about correct using the rowtype variable

I hope this helps,
Regards,
Richard Broersma Jr.