Question

I my mysql db I have a table with 3 parameters ( name, views, id ). I need to get row ordered by views. I’m getting something like this.

query:

select 
from table 
order by views

Result:

   id    |  name   |  views
   ------------------------
   7     |  xxxx   |  9000
   2     |  yyyy   |  8000
   1     |  aaaa   |  7000
   4     |  bbbb   |  6000
   8     |  dddd   |  5000
   6     |  cccc   |  4000
   5     |  oooo   |  3000
   3     |  tttt   |  2000

What I need to do, is to get rows ordered by views but starting with specyfic ID. Is it possible. All input that i have is ID. Let sat that ID is 6, this should be output:

   id    |  name   |  views
   ------------------------       
   6     |  cccc   |  4000
   5     |  oooo   |  3000
   3     |  tttt   |  2000

I can’t use LIMIT as I don’t really know what is possition at the moment. I just need to get rows which are left starting with ID.

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What I’m trying to do is to get infinite scroll, I requesting next elements base on last element that was displayed. Only tricky part is that I’m ordering by views parameter.

Answer 1

select * from table
where (views = 4000 and id>6) or (views < 4000) 
order by views desc, id asc;

The tricky part is that you have to know (select) the views of the element with ID 6; also you need to use the ID as secondary sort criteria in order to get consistent results.

Actually this is a common case of a since,until type of paging