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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'

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