I still like to have a unique id field per table. It helps logging and it doesn't care about multi fields "real" key.
However I keep an unique index on the string value and more importantly point integrity constraints to it, mainly for readability. It's way easier to read a table full of meaningful strings rather than full of numerical id or uuids.
However I keep an unique index on the string value and more importantly point integrity constraints to it, mainly for readability. It's way easier to read a table full of meaningful strings rather than full of numerical id or uuids.