Question

这是我的查询，我用于分页

SELECT DISTINCT email_list.*, email_counter.phone as e_phone,email_counter.email as e_email,email_counter.marketing as e_marketing   
FROM Data_TLS_builders as email_list 
LEFT JOIN wp_pato_email_list_counters as email_counter on email_counter.email_id = email_list.URN    
LIMIT 120 OFFSET 150

而不是从120开始并在150结束，这应该显示30个结果，而mysql返回120结果并忽略OFFSET。我试过LIMIT 120,150但仍然一样？

知道如何解决？

Answer 1

form do |f|
  inputs do
    input :name
    input :address

    f.has_many :cars, heading: nil, allow_destroy: false, new_record: false do |a|
      a.input :name
    end
  end
end

SELECT DISTINCT email_list.*, email_counter.phone as e_phone,email_counter.email as e_email,email_counter.marketing as e_marketing FROM Data_TLS_builders as email_list LEFT JOIN wp_pato_email_list_counters as email_counter on email_counter.email_id = email_list.URN LIMIT 30 OFFSET 120指定记录数。

Limit指定应跳过的记录数。

以上查询从121返回30条记录。

Answer 2

LIMIT会告诉mysql你想要显示多少结果。 OFFSET会告诉mysql从哪里开始。

如果你想从120开始显示30个结果，它应该是：限制30 OFFSET 120 要么限制120,30

Mysql Limit Offset无法正常工作

2 个答案: