How to do a COUNTIF formula with mysql [duplicate] - mysql

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MySQL pivot row into dynamic number of columns
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I'm looking at some keyword rankings and need to bring back data on the number of keywords a URL has increased rank for, decreased rank for, stayed the same for. My data looks like this:
URL | Keyword | Position | Previous position | Keyword Movement
example.com/page1 | things to do london | 38 | 101| Up
example.com/page2 | mens shoes size 8 | 48 | 94 | Up
example.com/page3 | notebooks | 22 | 2 | Down
example.com/page4 | macbook pros for sale | 52 | 52 | Same
example.com/page1 | homebrew supplies | 56 | 46 | Down
example.com/page2 | sql tutorials | 70 | 39 | Down
example.com/page3 | random seo keywords | 88 | 36 | Down
example.com/page4 | best albums of 2017 | 94 | 95 | Up
example.com/page5 | fender stratocaster | 19 | 9 | Down
example.com/page6 | qotsa | 91 | 34 | Down
I'd like to have a table showing the URL, number of keyword increases, no. of keyword decreases, and no. of keywords staying the same. In Excel this can be done with a countif formula but not sure how to do this with mysql. I'd like a table looking like the following:
URL |Keywords Up |Keywords Down |Keywords remain
example.com/page1 | 1 | 1 | 0
example.com/page2 | 1 | 1 | 0
example.com/page3 | 0 | 2 | 0
example.com/page4 | 1 | 0 | 1
example.com/page5 | 0 | 1 | 0
example.com/page6 | 0 | 1 | 0
I'm looking for a way of doing a countif on the "Movement" column.
Thanks.

Answer 1

You can use condtional aggregation here on the Movement column and tally the three types of movements, grouping by URL.
SELECT
URL,
SUM(CASE WHEN Movement = 'Up' THEN 1 ELSE 0 END) AS keywords_up,
SUM(CASE WHEN Movement = 'Down' THEN 1 ELSE 0 END) AS keywords_down,
SUM(CASE WHEN Movement = 'Same' THEN 1 ELSE 0 END) AS keywords_remain
FROM yourTable
GROUP BY URL