mysql - SQL Trending Data -


i trying create trending posts database call homepage.

the best way thought of doing this, making 2 integer tables.

the problem having, sorting these results.

here table looks like, keep track of last 10 trending posts.

name         trending             clicks post1          10                   5 post2           9                   15 post3           8                   12 post4           7                   10 post5           6                   8 post6           5                   8 post7           4                   22 post8           3                   18 post9           2                   8 post10          1                   8

the trending position updated every 4 hours , clicks reset 0.

from data, need pull posts in order

name         trending             clicks post6           5                   22 post8           3                   18 post2           9                   15 post3           8                   12 post4           7                   10 post5           6                   8 post9           2                   8 post10          1                   8 post1          10                   5

here example:

name         trending             clicks post1          10                   0 post5           6                   9 post2           9                   0 post3           8                   0 post4           7                   0 post6           5                   0 post7           4                   0 post10          1                   3 post8           3                   0 post9           2                   0

i need sort these results, based on clicks if above trending position.

example: if post #8 get's more clicks position #4, take it's spot , keep order of trending, use clicks order data.

the original posts keep position until trending post has gotten more clicks position take it's place.

the problem i'm trying resolve, when reset trending data. reset data every 4 hours want keep positions , weight on each trending post.

did explain enough , can please me?

why doesnt work ?

select name, trending,  clicks yourtable  order clicks desc

but if want keep previous trend, need add weight column.

select name, trending, clicks, weight yourtable  order ((clicks + weight) /2) desc

instead of reset trend every 4h wouldnt easy calculate clicks on last 4h. have record datatime each click

select name, count(clicks) clicks yourtable datetime > dateadd(h,-4,getdate()) group name order count(clicks) desc

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