SELECT np.id FROM user_nft_photo up RIGHT JOIN nft_photo np ON up.nft_photo_id = np.id WHERE ( LENGTH( up.phone ) = 0 OR up.phone IS NULL ) AND np.STATUS = #{flag} ORDER BY rand() LIMIT 1 insert into user_nft_photo ( phone, nft_photo_id, create_time ) values ( #{seed}, #{id}, now() ) select * from user where openid = #{openid} SELECT np.`name` as url, np.painting_hash, np.status, u.nickname, u.wallet_addr, u.phone FROM nft_photo np INNER JOIN user_nft_photo up ON np.id = up.nft_photo_id INNER JOIN `user` u ON up.phone = u.phone where u.openid = #{openid} SELECT u.phone, np.painting_hash FROM nft_photo np INNER JOIN user_nft_photo unp ON np.id = unp.nft_photo_id INNER JOIN USER u ON u.phone = unp.phone where u.openid = #{openid} SELECT count( np.id ) FROM nft_photo np LEFT JOIN user_nft_photo unp ON np.id = unp.nft_photo_id WHERE unp.id IS NULL SELECT np.status FROM nft_photo np INNER JOIN user_nft_photo up ON np.id = up.nft_photo_id INNER JOIN `user` u ON up.phone = u.phone where u.openid = #{openid}