Redis is an open-source, BSD-licensed advanced key-value store. It is often referred to as a data structure server since the keys can contain strings, hashes, lists, sets, and sorted sets. Redis is written in C.
Redis is a NoSQL database that follows the principle of a key-value store.
Some commands of Redis.
DECR: This command decrement the number stored at key by one.
DECRBY: Decrement the number stored at the key by a given number.
DEL: Remove the specified keys.
EXISTS This command tests if the specified key exists.
EXPIRE: This command set a timeout on the key.
GET: This command gets the value of the specified key.
GETSET: GETSET is an atomic set of this value and returns the old value command.
HDEL: This command removes the specified field from a hash stored at the key.
HEXISTS: This command returns 1 if the hash stored at the key contains the specified field. Return 0 if the key is not found or the field is not present.
HGET: If the key holds a hash, retrieve the value associated with the specified field.
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