issue with export and import zipped sql file in phpmyadmin

Question

I am trying to export a database from server A, and then import it to server B, the sql file is too large, so I want to zip it, for export, there is one option called compression, on the select-list, there are 3 items:zipped, gzipped, bzipped,

Question:

1.what is the different between zipped, gzipped, bzipped? which one should I choose?

2.when I import it to server B, can I just upload the zip file? is there anything i need to do before import or after import?

Answer 1

1) They are different compression algorithms (for ex : bz and gz have a higher rate of compression then zip but the process is more time consuming) you can read more here
2) Yes you can upload the already compressed file with the condition that the compressed alg is one that the PMA already offers (in your case it is)