11/12/17 14:55:06.91
select id from posts where user_id = 3;
update posts set title = 'hogehoge' where id = 5;
と
update posts set title = 'hogehoge' where user_id = 3;
さてどっちが速いかね
11/12/17 14:55:06.91
select id from posts where user_id = 3;
update posts set title = 'hogehoge' where id = 5;
と
update posts set title = 'hogehoge' where user_id = 3;
さてどっちが速いかね