mysql update script problem. all txt is lower case just first letter is upper case

This are my text in mysql datab开发者_如何学Case.

Otok Pasman, Kraj
Otok pasman,Kraj
Otok Pasman , Kraj
Otok pasman, Kraj
Otok PASMAN, Kraj

How can i automatically change all rows to lower case, first letter must be upper case and " , " is always ", "?

so like this:

Otok Pasman, Kraj

and all other text in database like this example?

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something like this should work:

UPDATE `table` 
SET `field` = REPLACE(CONCAT(UPPER(LEFT(`field`, 1)), LOWER(SUBSTRING(`field`, 2))),' , ', ', ')