SELECT id HAVING maximum count of id

Question

Have a products table with item_id and color_id. I\'m trying to get the color_id with the most non-null instances.

This fails:

SELECT color_id 
           


        

Answer 1

SELECT color_id
FROM
    (
        SELECT  color_id, COUNT(color_id) totalCount
        FROM    products 
        WHERE   item_id = 1234 
        GROUP   BY color_id 
    ) s
HAVING totalCount = MAX(totalCount)

UPDATE 1

SELECT  color_id, COUNT(color_id) totalCount
FROM    products 
WHERE   item_id = 1234 
GROUP   BY color_id 
HAVING  COUNT(color_id) =
(
  SELECT  COUNT(color_id) totalCount
  FROM    products 
  WHERE   item_id = 1234 
  GROUP   BY color_id 
  ORDER BY totalCount DESC
  LIMIT 1  
)

• SQLFiddle Demo (having tie)

Answer 2

To make it simple, use in built function in Oracle(Works only with Oracle Database 11g+ version) :

select stats_mode(color_id) from so_test 

This would return highest occurrence of colour ids.

Answer 3

SELECT 
  color_id, 
  COUNT(color_id) AS occurances
FROM so_test
GROUP BY color_id
ORDER BY occurances DESC
LIMIT 0, 1

Here is a sample fiddle with a basic table that shows it working: sql fiddle

Answer 4

SELECT color_id AS id, COUNT(color_id) AS count 
FROM products 
WHERE item_id = 1234 AND color_id IS NOT NULL 
GROUP BY color_id 
ORDER BY count DESC
LIMIT 1;

This will give you the color_id and the count on that color_id ordered by the count from greatest to least. I think this is what you want.

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for your edit...

SELECT color_id, COUNT(*) FROM products WHERE color_id = 3;