Pic shows table, I can edit any column except last one, I set that column for images.
You do not state what database you are using. With HSQLDB embedded (v1.8) and embedded images there can be loss of data and crashes. See this post → Libreoffice DATABASE crashes and corrupts
With other databases entry for embedded images is done through a Form using an image control. It is still recommended to not bloat a database with images (can be a performance issue) and instead use links to the images. See → How to insert a link to an odb database to display an image.