```
insert into t_user02 values ('2021-06-03',9,1,'jack',3);
insert into t_user02 values ('2021-06-10',10,2,'rose',2);
insert into t_user02 values ('2021-07-03',11,1,'jim',2);
insert into t_user02 values ('2021-07-05',12,1,'grace',2);
insert into t_user02 values ('2021-07-12',13,2,'tom',2);
insert into t_user02 values ('2021-08-15',14,3,'bush',3);
insert into t_user02 values ('2021-08-12',15,3,'helen',3);```改进显式列名、批量插入、事务控制