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Mysql rename JPG to jpg

开发者 https://www.devze.com 2023-03-10 16:35 出处:网络
I\'m switching from a windows server to a linux server and case sensitivity is a bit of a problem in the database. For most fields I\'ve just been able to use the following command:

I'm switching from a windows server to a linux server and case sensitivity is a bit of a problem in the database. For most fields I've just been able to use the following command:

UPDATE images_T SET image_path = LOWER(image_path)

However for one of the fields I need to change just the JPG part to jpg and keep all other capitalization. Eg. \images\T\12435.JPG I want to change to \images\T\12435.jpg so I want to k开发者_如何学编程eep the capital T. I've tried using the RIGHT function to do this but haven't had much luck.


UPDATE images_T SET image_path = REPLACE(image_path, '.JPG', '.jpg')

With LEFT+Right (works with any extension):

UPDATE images_T SET image_path = CONCAT(
                                   LEFT(image_path, length(image_path - 3))
                                 , lower(RIGHT(image_path, 3))
                                 )


You can try this

UPDATE images_T set image_path = replace(image_path,'.JPG','.jpg');


Try REPLACE

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