mysql> use db_name;
mysql> source file_name.sql;
Source : https://www.programmingquest.com/2018/08/how-to-export-mysql-database-using.html
open cmd
set mysql path in cmd
set path=c:\wamp\bin\mysql\mysql5.6.17\bin
For database import (Restore):
mysql -u YourUser -p YourDatabaseName < filename.sql