SQL查询根据类别返回列的值大于特定最小值的行吗？

Question

如果我有，例如这2个表：

表1：

item  category  rating 
------  --------  ------ 
table  furniture  6 
chair  furniture  5 
sofa  furniture  7 
bed  furniture  4 
apple  food   7 
banana  food   6 
spinach food   9 
almonds food   8 
happiness feeling  7 
compassion feeling  6 
love  feeling  8 
admiration feeling  7 

和表2：

category  minimum_rating 
--------  -------------- 
furniture   6 
food    8 
feeling   7 

，并考虑到minimum_rating对每一类别的值会每个月进行修订，所以它会改变......我如何查询table1与table2的关系，以便它将采用该项目的该类别的minimum_rating的值，并仅返回table1中具有等于或大于minimu的评级的项目米评价？在这种情况下，查询将有望回归：

item  category  rating 
------  --------  ------ 
table  furniture  6 
sofa  furniture  7 
spinach food   9 
almonds food   8 
happiness feeling  7 
love  feeling  8 
admiration feeling  7 

非常感谢您的knowleadgeable输入！

Answer 1

我想你需要一个JOIN像下面这样的表格。你或许可以如说t1.rating = t2.minimum_rating

select t1.* 
from table1 t1 join table2 t2 on t1.category = t2.category 
where t1.rating >= t2.minimum_rating; 

Answer 2

一个简单的加入应该做的工作：

Select a.* from table1 as a 
inner join table2 as b on a.furniture = b.furniture and a.rating >=  b.minimum_rating;