You can resolve that problem on few different ways:

1) If you have console access you can login and import SQL dump ( assumed that you upload that file before ) by console command

2) If you don’t have console access then you probably have access to phpMyAdmin only and do import manual by opening SQL dump in text editor and pasting small parts into database and if you have realy large database this is pain of job and after few copy/pasting you are bored …

There must be another solution for that – I think

So i googled and googled ( magic ! ) and i founded nifty little tool

SQL Dump File Splitter by Philip Lehmann-Böhm – And i must say good work Philip ( you save me )

You can download this program in two version

1) ZIP file or

2) RAR file

you select whatever you want

I hope that will be very helpful to your future projects

Regards!