I am trying to select records where the record shares a field value with another record, but the query I am trying only returns one occurrence. For example, in this table:
COUNTRY LANGUAGE
Mexico Spanish
Portugal Portuguese
Russia Russian
Spain Spanish
Thailand Thai
United Kingdom English
United States English
... I would like to return:
COUNTRY LANGUAGE
Mexico Spanish
Spain Spanish
United Kingdom English
United States English
Using:
SELECT * FROM `table` GROUP BY `language` HAVING COUNT(language) > 1
I only get:
COUNTRY LANGUAGE
Spain Spanish
United Kingdom English
Where am I going wrong here?
Found a solution:
SELECT * FROM `TABLE` WHERE `language` IN (
SELECT * GROUP BY `language` HAVING COUNT(primary_language) > 1
)
You need to break this up into two steps. Get the list of languages in a sub-select, then get the rows:
SELECT * FROM country_language where language in (SELECT language FROM country_language GROUP BY language HAVING COUNT(*) > 1)
try this
SELECT COUNTRY, LANGUAGE FROM
table
WHERE LANGUAGE IN (SELECT LANGUAGE FROMtable
GROUP BYlanguage
HAVING COUNT(language) > 1);
You need a sub query that returns the set of languages that have multiple countries speaking them. Then select all of the rows whose language is in that set:
SELECT *
FROM `table`
WHERE language IN
(
SELECT language FROM `table` GROUP BY `language` HAVING COUNT(*) > 1
)
I'm not that experienced with having but this should do the trick!
SELECT Country
from (SELECT Country, count(Lang) as Langs
FROM Land
Group by Lang) as table2
WHERE table2.Langs!=1
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