Why do so many developers set varchar to 254 and not 255 when creating MySQL tables?
Proof that this happens: mysql varchar 254
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Why do so many developers set varchar to 254 and not 255 when creating MySQL tables?
Proof that this happens: mysql varchar 254
varchar fields require n+1 bytes for fields less than or equal to 255
and required n+2 bytes for fields > 255
http://dev.mysql.com/doc/refman/5.0/en/storage-requirements.html
It should be set to 255, I’m assuming developers think they will save an extra byte from 254, but 255 is the standard