Question

I have a table with languages which s_name value looks like this:

'en_UK'
'en_US'
'de_CH'
'de_AT'

I want to get all the distinct languages, without the country part. So for example, in case I just had those of the example, I would need to get:

en
de

What would be the best way of doing so?

I have this right now:

SELECT DISTINCT SUBSTRING(name,1,2) 
FROM my_languages

Answer 1

Try this:

SELECT DISTINCT SUBSTRING_INDEX(name, '_', 1) langName 
FROM my_languages

OR

SELECT SUBSTRING_INDEX(name, '_', 1) langName 
FROM my_languages 
GROUP BY langName

Check this link MySQL STRING Functions