Oracel相关

 update Student set SBrithday=(to_date('1996-12-26','yyyy-mm-dd')) where StId=403140215;  //更新date类数据

alter table Student modify (SBrithday varchar(20));//更新字段类型 当修改列值为空时


sqlplus插入语句之后重启查询不到数据,需要commit

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转载自blog.csdn.net/qq_36380180/article/details/70049783