If a SQL file is uploaded through phpMyAdmin that exceeds the upload size limit and/or the post size limit, the following error will occur:
This error is provided because only part of the file was uploaded due to the upload limit, which results in a corrupted import.
To increase the maximum upload limit in phpMyAdmin, you must increase the cPanel PHP max upload size and cPanel PHP max POST size values. The maximum value these limits can be increased to is 2047 M. If your import file is larger than 2047 M, you must import the database via the command line.
Step-By-Step Instructions-
Once this is done, you’ll see that phpMyAdmin now shows the new maximum upload size on the import screen next to the upload button.