MySQL - Selecting the top occurring entries
Should be a simple one.
Database is mydb. One of the columns is mydata.
What SELECT query do I need in order to select the top 3 occurring results from mydata, but sorted alphabetically?
For example, if my data is this:
mydata
======
kilo (x 1 occurrence)
lima (x 9 occurrence开发者_运维百科s)
golf (x 5 occurrences)
echo (x 9 occurrences)
zulu (x 8 occurrences)
How do I get it to return "echo, lima, zulu", which are the top three frequently occurring entries sorted alphabetically? Thanks!
EDIT: Just to add, they need to be distinct entries. Thanks!
Use an inner select to select the results you want, and the outer select to put them into alphabetical order.
SELECT mydata
FROM (
SELECT mydata
FROM mytable
GROUP BY mydata
ORDER BY COUNT(mydata) DESC
LIMIT 3
) AS T1
ORDER BY mydata
Result:
'echo'
'lima'
'zulu'
Test data:
CREATE TABLE mytable (mydata VARCHAR(100) NOT NULL);
INSERT INTO mytable (mydata) VALUES
('kilo'),
('lima'), ('lima'), ('lima'), ('lima'), ('lima'), ('lima'), ('lima'), ('lima'), ('lima'),
('golf'), ('golf'), ('golf'), ('golf'), ('golf'),
('echo'), ('echo'), ('echo'), ('echo'), ('echo'), ('echo'), ('echo'), ('echo'), ('echo'),
('zulu'), ('zulu'), ('zulu'), ('zulu'), ('zulu'), ('zulu'), ('zulu'), ('zulu');
SELECT mydata
FROM mytable
GROUP BY mydata
ORDER BY count(id), mydata
not sure though
SELECT mydata
FROM mytable
GROUP BY mydata
ORDER BY COUNT(mydata) DESC, mydata
LIMIT 3
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