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The Redis Rename command is used to modify the name of the key.
The basic syntax of the redis Rename command is as follows:
redis 127.0.0.1:6379> RENAME OLD_KEY_NAME NEW_KEY_NAME
>= 1.0.0
Prompt OK when the rename is successful, and return an error when it fails.
When OLD_KEY_NAME and NEW_KEY_NAME are the same, or OLD_KEY_NAME does not exist, an error is returned. Cuando NEW_KEY_NAME ya existe, el comando RENAME reemplazará el valor antiguo.
# La clave existe y newkey no existe
redis> SET message "hello world"
OK
redis> RENAME message greeting
OK
redis> EXISTS message # message ya no existe
&40;entero&41; 0
redis> EXISTS greeting # greeting lo reemplazará
&40;entero&41; 1
# Al no existir la clave, se devuelve un error
redis> RENAME fake_key never_exists
&40;error&41; ERR clave no encontrada
# newkey ya existe, RENAME reemplazará el valor antiguo
redis> SET pc "lenovo"
OK
redis> SET personal_computer "dell"
OK
redis> RENAME pc personal_computer
OK
redis> GET pc
&40;nil&41;
redis:1> GET personal_computer # El valor original dell ha sido reemplazado
"lenovo"