Make all store images the base, small and thumbnail images in Magento?

Question

I have a Magento store that has around 3,000 products. Almost all of these products have a single image attached to it.

For some reason, even though I set the small

Answer 1

i know this is an old post, however in case anyone has the same issue then the problem was with the ev.attribute_id. Updated code below:

UPDATE 
    catalog_product_entity_media_gallery AS mg,
    catalog_product_entity_media_gallery_value AS mgv,
    catalog_product_entity_varchar AS ev
SET 
    ev.value = mg.value
WHERE  
    mg.value_id = mgv.value_id
      AND mg.entity_id = ev.entity_id
      AND ev.attribute_id IN (74, 75, 76)
      AND mgv.position = 1

Thanks.