MySQL

Grant all privileges

GRANT ALL PRIVILEGES ON database.* TO 'user'@'%' WITH GRANT OPTION;

Change password

SET PASSWORD FOR 'user'@'localhost' = PASSWORD('password');
FLUSH PRIVILEGES;

Export to csv

SELECT * FROM table INTO OUTFILE '/tmp/export.csv' FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n';

Export headers

SELECT GROUP_CONCAT(COLUMN_NAME) from INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'table' and TABLE_SCHEMA='database' order BY ORDINAL_POSITION;