1) Normally we are selecting record from a table :
select *from student
O/P: 100 chinmay kumar tripathy(In database)
2) If we have to write the record in a file then :
select * into outfile 'E:/chinmay/temp.txt' from student
O/P: 100 chinmay kumar tripathy(In file location E:/chinmay/temp.txt)
3) If we have to write the file in specific format then:
select * into outfile 'E:/chinmay/temp.txt 'FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY '\n' from student
O/P: 100,"chinmay","kumar","tripathy" (In file location E:/chinmay/temp.txt)