Redis Keys: RENAMENX

RENAMENX key newkey

Redis RENAMENX command is used to change the name of a key to newkey if the new key does not exist. It returns an error under the same conditions as RENAME.

Syntax:

RENAMENX OLD_KEY_NAME NEW_KEY_NAME

Available since

1.0.0.

Return Value

Integer reply, specifically :

• 1, if the key is renamed to the new key.
• 0, if a new key already exists.

Return Value Type

Integer

Example - 1: Redis RENAMENX

First, create some keys in redis and set some values in it.

127.0.0.1:6379> SET key "Apple"
OK
127.0.0.1:6379> SET key1 "Banana"
OK
127.0.0.1:6379> RENAMENX key key1
(integer) 0
127.0.0.1:6379> GET key1
"Banana"

Example - 2: Redis RENAMENX

Now rename the key key1 to Python.

127.0.0.1:6379> MSET key "PHP" key1 "JavaScript"
OK
127.0.0.1:6379> RENAMENX key key1
(integer) 0
127.0.0.1:6379> RENAMENX key Python
(integer) 1

Previous: RENAME
Next: RESTORE

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