MYSQL返回不带空字段的结果

下面的代码为我提供了一个

但是，我如何才能使它，使我得到一个结果呢

代码：

SELECT * FROM `shop_shipping_rules` LEFT JOIN `countries` ON `shop_shipping_rules`.shop_shipping_rule_country_iso = `countries`.iso 
LEFT JOIN `shop_shipping_regions` ON `shop_shipping_regions`.shop_shipping_rule_region_code = `shop_shipping_rules`.shop_shipping_rule_region_code
WHERE `website_id` = 64 AND `shop_shipping_rule_name` IS NOT NULL

---

在谓词中，过滤掉空字段

AND `shop_shipping_rule_name` IS NOT NULL AND `shop_shipping_rule_name` <> ''

---

或

应为

和

。

UPDATE `shop_shipping_rules` 
SET `shop_shipping_rule_name` = NULL 
WHERE `shop_shipping_rule_name` = ''