A specific value(only one) to be first in a query result. Rest order by time stamp

问题

I have a search result query for posts. And I want posts written by myself(userId = 27) to be first in query result and rest ordered by time stamp. Can anyone give me query for that in mysql?

回答1:

select *
from posts
order by 
  if (userid=27, -1, any_timestamp_include_zero);

include your full table schema help much better

回答2:

How about something like:

select * from post
order by 
    case 
        when userid = 25 then '0001-01-01 00:00:00' 
        else my_timestamp
    end

(formatting the '0001-01-01' part appropriately for MySql)

回答3:

Something simple like this:

SELECT * FROM POST WHERE userId = 25
UNION
SELECT * FROM POST WHERE userId <> 25 ORDER BY TIMESTAMP_FIELD

Could work for your need?

来源：https://stackoverflow.com/questions/4570872/a-specific-valueonly-one-to-be-first-in-a-query-result-rest-order-by-time-sta