mysql操作

创建表：create table stuinfo(stuid int unsigned primarykey,stuname varchar(10) not null,gender char(1),birthdate date,class varchar(2),city varchar(20)

插入数据：insert into stuinfo(stuid,stuname,gender,class,city,major) values(20190001,"芦苇","男","3班","合肥","唱歌");

给表新增字段：alter table stuinfo add major varchar(20) after(before)  字段名;

删除字段：alter table stuinfo drop major ;

表重新命名：alter table stuinfo rename stuinfos;

查询结果导出：select * from stuinfo into outfile  '目录'  fields terminated by '分裂符号' lines terminated by '\r\n';

文件导入数据库：load data infile '文件路经' into table orders fields terminated by '\t' lines terminated by '\r\t'; 

 

 

错误：1290 - The MySQL server is running with the --secure-file-priv option so it cannot execute this statement 

处理方式：修改mysql配置文件my.ini中secure-file-priv的值，为空任意文件目录导出，配置目录为指定目录导入导出。