1.配置文件中将这行注销“secure-file-priv="C:/ProgramData/MySQL/MySQL Server 5.7/Uploads" ”；很多人添加权限依然不行就是因为这行没有添加；
注意：加完后一定要重启mysql；
2.赋权限
grant all on proposaldb.* to root@'localhost' identified by 'zzzz2222.';
set global read_only=off ;/*set global read_only=0;*/
flush privileges;/* SET SESSION binlog_format = 'ROW'; SET GLOBAL binlog_format = 'ROW';*/
select LoginName from sysuser into outfile 'e://output1.csv' fields terminated by ','optionally enclosed by '' lines terminated by '/n';