Returns a random key name from the database.
RANDOMKEY
Return a random key from the currently selected database.
One of the following:
Nil reply: when the database is empty.
Bulk string reply: a random key in database.
One of the following:
Null reply: when the database is empty.
Bulk string reply: a random key in the database.
O(1)
@keyspace @read @slow
COPY, DEL, DUMP, EXISTS, EXPIRE, EXPIREAT, EXPIRETIME, KEYS, MIGRATE, MOVE, OBJECT, OBJECT ENCODING, OBJECT FREQ, OBJECT HELP, OBJECT IDLETIME, OBJECT REFCOUNT, PERSIST, PEXPIRE, PEXPIREAT, PEXPIRETIME, PTTL, RENAME, RENAMENX, RESTORE, SCAN, SORT, SORT_RO, TOUCH, TTL, TYPE, UNLINK, WAIT, WAITAOF.