CREATE DEFINER=`wpsuper`@`%` TRIGGER `o2oinsert` BEFORE INSERT ON `t_s_o2o`
FOR EACH ROW begin
set New.fbianhao=(select fprojectval from t_billCodeRule where id=2 ); --更新当前数据的字段的值
update t_billCodeRule set fprojectval=fprojectval+1 where id=21; --更新其他表的内容
end;