DEL key [key ...]
- Available since:
- Time complexity:
- O(N) where N is the number of keys that will be removed. When a key to remove holds a value other than a string, the individual complexity for this key is O(M) where M is the number of elements in the list, set, sorted set or hash. Removing a single key that holds a string value is O(1).
- ACL categories:
Removes the specified keys. A key is ignored if it does not exist.
Integer reply: The number of keys that were removed.