It might be because column you trying to insert doesn't exist on table. I could give you two solutions.
How are you importing the products? Is that by
System -> Import/Export -> Dataflow - Profiles -> Import All Products.
Solution 1: I would like to suggest you to import by a mass importer called magmi. It has got good wiki page which gives you a elaborate description of the plugins and all other stuffs to import inside Magento.
Solution 2: Update Quantity Separately - Click that link
Good Practices : It's always good practice use these these lines in the beginning of the SQL file which you're going to import
SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT;SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS;SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION;SET NAMES utf8;SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO';SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0;
And at the end of the SQL file add these lines
SET SQL_MODE=@OLD_SQL_MODE;SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT;SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS;SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION;SET SQL_NOTES=@OLD_SQL_NOTES;