问题
Today I want to get a help in creating scores per user in my database. I have this query:
SELECT
r1.id,
r1.nickname,
r1.fecha,
r1.bestia1,
r1.bestia2,
r1.bestia3,
r1.bestia4
r1.bestia5
FROM
reporte AS r1
INNER JOIN
( SELECT
nickname, MAX(fecha) AS max_date
FROM
reporte
GROUP BY
nickname ) AS latests_reports
ON latests_reports.nickname = r1.nickname
AND latests_reports.max_date = r1.fecha
ORDER BY
r1.fecha DESC
that's from a friend from this site who helped me in get "the last record per user in each day", based on this I am looking how to count the results in a ranking daily, weekly or monthly, in order to use statistics charts or google datastudio, I've tried the next:
select id, nickname, sum(bestia1), sum(bestia2), etc...
But its not giving the complete result wich I want. thats why I am looking for help. Additionaly I know datastudio filters where I can show many charts but still I can count completely.
for example, one player in the last 30 days reported 265 monsters killed, but when I use in datastudio my query it counts only the latest value (it can be 12). so I want to count correctly in order to use with charts
SQL records filtered with my query:
回答1:
One general approach for get the total monsters killed by each user on the latest X days and make a score calculation like the one you propose on the commentaries can be like this:
SET @daysOnHistory = X; -- Where X should be an integer positive number (like 10).
SELECT
nickname,
SUM(bestia1) AS total_bestia1_killed,
SUM(bestia2) AS total_bestia2_killed,
SUM(bestia3) AS total_bestia3_killed,
SUM(bestia4) AS total_bestia4_killed,
SUM(bestia5) AS total_bestia5_killed,
SUM(bestia1 + bestia2 + bestia3 + bestia4 + bestia5) AS total_monsters_killed,
SUM(bestia1 + 2 * bestia2 + 3 * bestia3 + 4 * bestia4 + 5 * bestia5) AS total_score
FROM
reporte
WHERE
fecha >= DATE_ADD(DATE(NOW()), INTERVAL -@daysOnHistory DAY)
GROUP BY
nickname
ORDER BY
total_score DESC
Now, if you want the same calculation but only taking into account the days of the current week (assuming a week starts on Monday), you need to replace the previous WHERE
clause by next one:
WHERE
fecha >= DATE_ADD(DATE(NOW()), INTERVAL -WEEKDAY(NOW()) DAY)
Even more, if you want all the same, but only taking into account the days of the current month, you need to replace the WHERE
clause by:
WHERE
MONTH(fecha) = MONTH(NOW())
For evaluate the statistics on the days of the current year, you need to replace the WHERE
clause by:
WHERE
YEAR(fecha) = YEAR(NOW())
And finally, for evaluation on a specific range of days you can use, for example:
WHERE
DATE(fecha) BETWEEN CAST("2018-10-15" AS DATE) AND CAST('2018-11-10' AS DATE)
I hope this guide will help you and clarify your outlook.
回答2:
This will give you number of monster killed in the last 30 days per user :
SELECT
nickname,
sum(bestia1) as bestia1,
sum(bestia2) as bestia2,
sum(bestia3) as bestia3,
sum(bestia4) as bestia4,
sum(bestia5) as bestia5
FROM
reporte
WHERE fecha >= DATE_ADD(curdate(), interval -30 day)
GROUP BY nickName
ORDER BY
来源:https://stackoverflow.com/questions/53438107/create-a-ranking-and-statistics-with-repeated-database-records