Import old tables into existing db for multisite

I have a new local site with unique prefixing that I’d like to host on the same db as another live site. I therefore want to export all tables from my local db and re-import them to the production db. When I try to import, I get the error below. Is there an export option or other technique which will assist smooth importation?

Thanks,
Matt

Error
SQL query:

--
-- Database: <code>feedback_films</code>
--
-- --------------------------------------------------------
--
-- Table structure for table <code>wwp_commentmeta</code>
--
CREATE TABLE  <code>wwp_commentmeta</code> (

 <code>meta_id</code> BIGINT( 20 ) UNSIGNED NOT NULL AUTO_INCREMENT ,
 <code>comment_id</code> BIGINT( 20 ) UNSIGNED NOT NULL DEFAULT  '0',
 <code>meta_key</code> VARCHAR( 255 ) DEFAULT NULL ,
 <code>meta_value</code> LONGTEXT,
PRIMARY KEY (  <code>meta_id</code> ) ,
KEY  <code>comment_id</code> (  <code>comment_id</code> ) ,
KEY  <code>meta_key</code> (  <code>meta_key</code> )
) ENGINE = INNODB DEFAULT CHARSET = utf8 AUTO_INCREMENT =1;

MySQL said: 

#1046 - No database selected