txt 파일로 내보내기 select * from [테이블명] into outfile '[파일명].txt' character set utf8mb4 fields terminated by ',', optionally enclosed by '"' escaped by '\\' lines terminated by '\n'; csv 파일로 내보내기 select * from [테이블명] into outfile '[파일명].csv' character set utf8mb4 fields terminated by ',', optionally enclosed by '"' escaped by '\\' lines terminated by '\n'; txt 파일 테이블로 읽어오기 load data infile '[파일명].txt' ..