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📜  Redis键

📅  最后修改于: 2020-12-02 01:02:49             🧑  作者: Mango

Redis键

Redis密钥与Redis命令一起使用来进行自我管理。请参阅在命令中使用Redis键的语法。

句法：

redis 127.0.0.1:6379> COMMAND KEY_NAME

例

让我们以与Redis DEL命令一起使用的Redis密钥为例。如果删除键，它将给出输出1，否则将为0。

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

此处，“ DEL”是Redis命令，而“ javatpoint”是键。

带命令的Redis键

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.