MySQL将一个大表分成了小型的相关表

Question

是否可以将大型MySQL表拆分为较小的相关表？

例如想象表：

x_data--
id | offer_price | offer_text | free_gift | free_gift_category | model_name | model_description | tariff_name | tariff_rental | tariff_minutes | tariff_texts | tariff_data | retailer_name | retailer_description

是否可以将其拆分为单独的表并构建关系，以便生成的表格如下所示：

offers--
id | offer_price | offer_text | free_gift_id | model_id | tariff_id | retailer_id

free_gifts-- 
id | free_gift | free_gift_category_id

free_gift_categories--
id | free_gift_category

models--
id | name | description

tariffs--
id | name | rental | minutes | texts | data

retailers--
id | name | description

即我可以在子选择或加入时插入吗？

类似的东西：

$query = "INSERT INTO retailers (name,description) 
    (SELECT retailer_name, retailer_description FROM x_data) as retailer, 
    (SELECT MAX(id) as retailer_id FROM retailers) as retailer_id,
     INSERT INTO tariffs (name, rental, minutes, texts, data) as tariffs, ...."

如果有可能，我该怎么办呢？