At work, we got ourselves a nice WooCommerce shop. Using WP All Import, it automagically imports the products and updates stock. But somehow in we ended up with products in our database with no SKU.
Removing one of those products, and then rerun the import, seemed to work. So maybe these products where in the product feed once without a SKU. Who knows. Anyways, I wanted them gone, and didn’t want to delete the entire database, afraid of what Google may think of that.
So I checked the database a bit and came up with a SQL query. First, to check if you have products with empty SKU’s as well, you could run something like this:
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SELECT p.ID, p.post_title, p.post_type, pm.meta_value FROM wp_posts p LEFT JOIN wp_postmeta pm ON pm.post_id = p.ID AND pm.meta_key = '_sku' WHERE p.post_type = 'product' AND (pm.meta_value = '' OR pm.meta_value IS NULL) |
To remove the products, I think this should do. Of course this wouldn’t delete the files in your upload folder. If you want to delete those as well, you might want to write a script that selects the records, and then removes the images as well.
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DELETE wp_posts, wp_postmeta, wp_comments, wp_commentmeta FROM wp_posts LEFT JOIN wp_postmeta ON wp_postmeta.post_id = wp_posts.ID AND wp_postmeta.meta_key = '_sku' LEFT JOIN wp_comments ON wp_comments.comment_post_ID = wp_posts.ID LEFT JOIN wp_commentmeta ON wp_commentmeta.comment_id = wp_comments.comment_ID LEFT JOIN wp_postmeta wpm2 ON wpm2.post_id = wp_posts.ID WHERE wp_posts.post_type = 'product' AND (wp_postmeta.meta_value= '' OR wp_postmeta.meta_value IS NULL) |