create table xscj
(
age varchar(32),
name varchar(64),
km varchar(32),
mark float,
出生日期 datetime
)
insert into xscj(age,name,km,mark,出生日期)
values('1001','张三','数学',85,2025-04-20),
('1004','李四','英语',88,2025-04-22),
('1003','王五','数学',76,2025-04-20),
('1002','六为','数学',90,2025-04-20);
create view v_xscj
as
select *
from xscj;
select *
from v_xscj;
update xscj
set km = '数据'
where = age = '1002'