Export with gzip commands to properly create a compressed file of a MySQL database & import to AWS RDS Server
Export From RDS Server:
mysqldump -h mywebinstance.rds.amazonaws.com -u myuser -p my-db-name | gzip > /var/www/html/dev-16-6-2022.sql.gz
Import to RDS Server:
gunzip < /var/www/html/dev-16-6-2022.sql.gz | mysql -h mywebinstance.rds.amazonaws.com -u myuser -p my-db-name