sql - MySQL case-insensitive DISTINCT -


can tell me how can select distinct database without being case-sensitive?

my query 

select distinct email `jm_order`

the results brings out emails in table repeats ones different cases e.g

sam@gmail.com josh@gmail.com sam@gmail.com john@gmail.com

what adjustment can make sql stop repeating sam@gmail.com because different cases?

try use upper function 

select distinct upper(email) `jm_order`

you can use lower instead

select distinct lower(email) `jm_order`

more information.


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