Problems with importing database phpmyadmin

I have exported my database which I have worked with locally and am now trying to import it via phpmyadmin. I have changed all the urls over from localhost to http://www.mysite.com and then I created a new database, importing it into the new site but i keep getting the following error:

Error

SQL query:

—
— Table structure for table wp_commentmeta
—
DROP TABLE IF EXISTS wp_commentmeta ;

MySQL said: Documentation
#1046 – No database selected

please help! I am desperate!