{"name":"gist: 829125","desc":"MySQL中常用SQL","actor":"marshluca","url":"https://gist.github.com/829125","snippet":"//主键\nalter table tabelname add new_field_id int(5) unsigned default 0 not null auto_increment ,add primary key (new_field_id);","actor_gravatar":"9a206eec7f985c5336abae0a4d502268","action":"create"}