php - Selecting average value from multiple rows -
i have 2 columns in mysql database i.e. totalrating , ratingdate. there exists multiple values of totalrating against on date e.g. there can 5 totalratings on date 2016-08-29, 4 on 2016-08-30. using chartjs show graph of totalrating , ratingdate. want take average of totalratings of single date , plot on graph i.e. 1 totalrating 1 date. using php backend. can me queries?
using below query can find average rating dates.
select avg(totalratings) avgrating, date your_table group date;
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