WordPress: SQL Error when importing database

Question: I’m developing a site locally on XAMPP with SQL 5.6.21. When I attempt to import the database to a server using an older version of SQL I get the following error: “#1273 – Unknown collation: ‘utf8mb4_unicode_ci’”

Answer: That’s not exactly a WordPress problems, and it would be easier to upgrade MySQL on the server, to be honest.
You need MySQL 5.5.3 or higher to support the utf8mb4_unicode_ci collation.
Have you contacted your hosting provider?
Alternatively, you can try changing your collation to utf8_general_ci but that might cause character encoding problems with the existing data.

Long Database Import

1.Computer Properties>Advanced system setting>Advanced>Environment Variables>system variables>path>edit>64 then ;
E:\XAMPP\mysql\bin folder path then ok,Then where have your Database shift+mouse right button click >open command window here

2.mysql -h localhsot -u root database name < database.sql

cmd mood for include database2