Problem uploading backup .sql ?

I am getting this error and am stumped. I tried emptying my tables before import but still can not get it to work. Any ideas? Should I delete all tables then upload?

ERROR

SQL query:

CREATE TABLE wp_commentmeta (

meta_id BIGINT( 20 ) UNSIGNED NOT NULL AUTO_INCREMENT ,
comment_id BIGINT( 20 ) UNSIGNED NOT NULL DEFAULT ‘0’,
meta_key VARCHAR( 255 ) DEFAULT NULL ,
meta_value LONGTEXT,
PRIMARY KEY ( meta_id ) ,
KEY comment_id ( comment_id ) ,
KEY meta_key ( meta_key )
) ENGINE = MYISAM AUTO_INCREMENT =211 DEFAULT CHARSET = utf8;

MySQL said:

#1050 – Table ‘wp_commentmeta’ already exists