Sql Average from Multiple Columns

Average of multiple columns

If the data is stored as INT, you may want to try

Average = (R1 + R2 + R3 + R4 + R5) / 5.0

SQL Find Average Multiple Columns

If you are using MySQL, you can get the average -- ignoring NULLs -- using:

SELECT (COALESCE(`2.R.1`, 0) + COALESCE(`2.R.2`, 0) + COALESCE(`2.R.3`, 0) + COALESCE(`3.R.1`, 0) + COALESCE(`3.R.2`, 0) + COALESCE(`3.R.5`, 0)) /
       ((`2.R.1` IS NOT NULL) + (`2.R.2` IS NOT NULL) + (`2.R.3` IS NOT NULL) + (`3.R.1` IS NOT NULL) + (`3.R.2` IS NOT NULL) + (`3.R.5` IS NOT NULL)
       )
FROM standards_data
WHERE `uuid` = 4;

This calculates the average within each row. If you actually want the average across rows as well, you can use AVG() with the above as the argument.

Find the average of two combined columns in sql

By definition, AVG(col1) = SUM(col1)/COUNT(*) and AVG(col2) = SUM(col2)/COUNT(*), therefore (SUM(col1)+SUM(col2))/COUNT(*) = AVG(col1) + AVG(col2).

Also, the commutativity of addition gives us (SUM(col1)+SUM(col2))/COUNT(*) = SUM(col1+col2)/COUNT(*) and hence AVG(col1+col2).

Average Multiple Columns in Postgres

Try this

  select coalesce (PRICE_INSTORE, 0 ) +  coalesce (PRICE_PICKUP, 0) + coalesce (PRICE_DELIVERY , 0) + coalesce (PRICE_SHIP , 0)  / 
 ((case when PRICE_INSTORE is null then 0 else 1 end) + (case when PRICE_PICKUP is null then 0 else 1 end) +
 (case when PRICE_DELIVERY is null then 0 else 1 end) + (case when PRICE_SHIP is null then 0 else 1 end) )
 from product

How to take average of two columns row by row in SQL?

try this:

SELECT 
    m.country_id, 
    m.season,
    m.home_goal,
    m.away_goal,
    (m.home_goal + m.away_goal)/2  AS avg_goal
FROM match AS m;

You have been asked for the group_by as avg() much like sum() work on multiple values of one column where you classify all columns that are not a columns wise operation in the group by

You are looking to average two distinct columns - it is a row-wise operations instead of column-wise

SQL average multiple columns for each row with nulls

Instead of dividing by 3, use

(CASE WHEN Quality IS NULL THEN 0 ELSE 1 END + 
 CASE WHEN Schedule IS NULL THEN 0 ELSE 1 END + 
 CASE WHEN [Cost Control] IS NULL THEN 0 ELSE 1 END)

Average of two columns in SQL

You should give it a try:

SELECT A, AVG((B+C)/2) as bc, AVG((C+B)/2) as cb
FROM tableTest
WHERE A = 'S'
GROUP BY A

Oracle : Selecting multiple columns with avg function

I think you've overthought this... all you need to do is add player into the select list in your first query and add player into the group by:

select player,
       round(avg(g1 + g2 + g3 + g4)) as "Average Score"
from   ch_user
group by playerid, player;

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