To beginners: How can I back up a database using commands in MySQL?

When I get used to the client, I have no idea about MySQL commands. Suddenly, SQL Yog cannot be used. How can we export data? I searched the internet, but there are a lot of answers, but they won't be used! . The backup command is mysqldump-hhostname-uusername-ppassword databasename> backupfile. SQL. Where should I write this command? I naturally think that in MySQL command line client, I believe some cainiao will think so, and the result always reports an error: OUTFILE disabled. No resistance. I posted a post on csdn for help. I learned that mysqldump is an operating system command and can be used directly in the operating system. Run the CMD command to enter the MySQL bin directory: D:/mysql6/bin>, and then press mysqldump-hlocalhost-uroot-p111111 database>
D:/database. SQL. That's all! Hope to help some people ......