Mysql Update and Select first element -

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i use 2 requests :

select `user` `table1` order `last activity` asc limit 0,1;

and

update `table1` set `last activity` = current_timestamp `user` = 'user'

i join both in 1 request.. because 2 program take same user.

edit: forgot need user name, update first element not enough. take user last activity, update time, , program user. problem many programs running simultaneously. , important not access same user @ same time between 2 requests

it sounds looking subquery.

that this:

update `table1`      set `last activity` = current_timestamp     `user` = (select `user` `table1`         order `last activity` asc limit 0,1)

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