![]() ![]() LEAST(social,science,math) as min FROM student_sum idĭisplaying sum of all columns at last row We can list starting from highest mark to lowest mark by using Order By Query.įrom student_sum GROUP BY id ORDER BY Total DESC Displaying highest & lowest mark in all subjects of each student SELECT id,name,GREATEST(social,science,math) as max, Listing all columns along with aggregate functions like sum(), max() using over() with partition → Displaying from Highest to lowest SELECT id,name,class, social, math, science, Note that id is unique value column in our table. Now we will try to display all marks and sum of them for each student by using group by. ![]() Query to display percentage value using 2 decimal places.įORMAT((( social + science + math)/(95*3) * 100),2) AS percentageįROM `student_sum` Sum of the row data of each record The above percentage data is having four decimal places, we can format these numbers by using ROUND Sql command. (( social + science + math)/(95*3) * 100) AS percentage SELECT id, name, class,( social + science + math) as Total, SELECT name, (( social + science + math)/(95*3) * 100) AS percentageįROM `student_sum` Displaying Total Mark with Percentageīoth total mark and percentage we can display like this So to get the percentage mark of each student we have to multiply 95 with 3 ( for three subjects ) and then divide that from the total and multiply with 100 here is the query. Let us assume the full mark in each subject is 95. We can add various other sql commands like where clause etc. SELECT sum(social + math + science ) as total So the sum is to be collected in all three columns. Now we will try to get sum of marks of all students in all subjects. We offer a 14-day free trial.Related Tutorial MySQL SUM MySQL Max MySQL Min MySQL AvgĪs you can see the above sum is sum of marks of each student. If you want to create charts, dashboards & reports from MySQL database, you can try Ubiq. Here’s an example of a pie chart created using Ubiq. You can customize the above queries as per your requirement to calculate percentage of column in MySQL.įurther, you can use a reporting tool to plot the data in a pie chart or dashboard. Sale * 100 / (SELECT SUM(sale) AS s FROM sales where Rep='Bob') AS `percent of total` ![]() Let’s say, you want to exclude Bob from the total itself, then here’s a query to do it. However, if you want to add where clause during totaling of column, you need to add it in the select clause of total. If you want to add a where clause to filter your data, you need to place it after the CROSS JOIN, as shown below. ![]() Sale * 100 / (SELECT SUM(sale) AS s FROM sales) AS `percent of total` You can also calculate percentage of column using a subselect, instead of using a JOIN, as shown below. How to Calculate Percentage of Column in MySQL using SUBSELECT/SUBQUERY SELECT Rep, Sale, Sale * 100 / t.s AS `percent of total`ĬROSS JOIN (SELECT SUM(sale) AS s FROM sales where Rep'Bob') tīonus Read : How to Calculate Percentage Growth Week Over Week in MySQL However, if you want to add where clause during totaling of column, you need to add it in the select clause of total, as shown below. SELECT Rep, Sale, Sale * 100 / t.s AS `percent of total`ĬROSS JOIN (SELECT SUM(sale) AS s FROM sales) t where Rep='Bob' SELECT Rep, Sale, Sale * 100 / t.s AS `percent of total`ĬROSS JOIN (SELECT SUM(sale) AS s FROM sales) t To calculate percentage of column in MySQL, you can simply cross join the sum() of sale column with the original table. How to Calculate Percentage of Column in MySQL using CROSS JOIN Let’s look at each of themīonus Read : How to Calculate Percentage of Two Columns in MySQL There’s no need to write separate queries for calculating total and percentage. You can do this in multiple ways using just a single query. Let’s say you want to display a column ‘percent of total’ which is simply the percent of total sale column, as shown below. mysql> create table sales(rep varchar(255),sale int) Let’s say you have the following table as shown below. How to Calculate Percentage of Column in MySQL Here’s how to calculate percentage of column in MySQL Since there is no out-of-the-box function to calculate this value, you need to write a SQL query for it. Sometimes you may need to calculate percentage of a column (e.g sales, revenue) in your data to understand what percent of your column’s total value is coming from each row (e.g country, state, etc). ![]()
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