sql新增方法

更新sql.sql

@@ -29,3 +29,16 @@ WHERE
 	c.parent_id != 0
 AND a.create_time >= '2020-10-9 00:00:00';
 
+# 更新商品大类小类
+UPDATE pms_product a
+LEFT JOIN pms_product_category b ON a.product_big_category_name = b.`name`
+LEFT JOIN pms_product_category c ON a.product_category_name = c.`name`
+
+SET a.product_big_category_id = b.id,
+ a.product_category_id = c.id
+WHERE
+	b.parent_id = 0
+AND c.parent_id != 0
+AND a.create_time >= '2020-10-9 00:00:00';
+
+