Alternative to using LIMIT keyword in a SubQuery in MYSQL
I have a table TEST with the following columns :
code_ver (VARCHAR)
suite (VARCHAR)
date (DATE)
Now I want to select 10 rows with a distinct value of code_ver & code_ver NOT LIKE '%DevBld%' sorted by date desc.
So I wrote the following query:
select *
from test
where code_ver IN (select DISTINCT code_ver
from test
where code_ver NOT LIKE '%DevBld%'
ORDER by date DESC LIMIT 10);
This query should ideally work, but my version of MySQL says :
This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
Can someone suggest me an alternative to this query?
Solution 1:
Answer suggested by Layke is wrong in my purview. Intention of using limit in subquery is so main query run on limited records fetched from subquery. And if we keep limit outside then it makes limit useless for subquery.
Since mysql doesn't support yet limit in subquery, instead you can use JOIN as follows:
SELECT * FROM test
JOIN
(
SELECT DISTINCT code_ver
FROM test
WHERE code_ver NOT LIKE '%DevBld%'
ORDER BY date DESC LIMIT 10
) d
ON test.code_ver
IN (d.code_ver)
ORDER BY xyz;
Solution 2:
You can also use same query, just by adding one extra layer of select before subquery. and that's it. It will work.
select * from test
where code_ver IN (select * from (select DISTINCT code_ver
from test
where code_ver NOT LIKE '%DevBld%'
ORDER by date DESC LIMIT 10) as t1);