How to export a mysql database using Command Prompt?

First check if your command line recognizes mysql command. If not go to command & type in:

set path=c:\wamp\bin\mysql\mysql5.1.36\bin

Then use this command to export your database:

mysqldump -u YourUser -p YourDatabaseName > wantedsqlfile.sql

You will then be prompted for the database password.

This exports the database to the path you are currently in, while executing this command

CSS is not loading on Magento 2 site

Refused to apply style “because its MIME type ('text/html') is not a supported stylesheet MIME type”

Refused to apply style from 'https://xxxxxxxxxxxx.com/pub/static/version1502029409/adminhtml/Magento/backend/en_US/css/styles-old...' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled."

The problem was solved when I re-deployed the assets for admin pages.

I run these commands:

1. grunt clean; grunt exec; grunt less
2. bin/magento setup:static-content:deploy -f -s standard
3. bin/magento cache:clean

Maybe, the CSS has to be re-deployed whenever the Sales email templates are updated.