Redis Keys

Redis Keys are used with Redis command to manage themselves. See the syntax of using Redis keys with commands.

Syntax:

Example

Let's take an example of Redis key using with Redis DEL command. It will give an output 1, if the key is deleted otherwise it will be 0.

redis 127.0.0.1:6379> SET javatpoint redis 
OK 
redis 127.0.0.1:6379> DEL javatpoint
(integer) 1 

Here, "DEL" is a Redis command while "javatpoint" is a key.

Redis Keys with Commands

Index	Command	Description
1	DEL key	This command is used to delete the key, if it exists.
2	DUMP key	This command is used to return a serialized version of the value stored at the specified key.
3	EXISTS key	This command is used to check whether the key exists or not.
4	EXPIRE key	This command is used to set the expiry of the key after the specified time in seconds.
5	EXPIREAT key	This command is used to set the expiry of the key after the specified time. Here time is in UNIX timestamp format.
6	PEXPIRE key	This command is used to set the expiry of key in milliseconds.
7	PEXPIREAT key	This command is used to set the expiry of the key in UNIX timestamp specified as milliseconds.
8	KEYS pattern	This command is used to find all keys matching the specified pattern.
9	MOVE key	It is used to move a key to another database.
10	PERSIST key	It is used to remove the expiration from the key.
11	PTTL key	It is used to retrieve the remaining time in keys expiry in milliseconds.
12	TTL key	It is used to retrieve the remaining time in keys expiry.
13	randomkey	It is used to get a random key from Redis.
14	RENAME key newkey	It is used to change the key name.
15	RENAMENX key newkey	It is used to rename the key, if a new key doesn't exist.
16	TYPE key	It is used to fetch the data type of the value stored in the key.