SET
Sets the value of the specified key.
Syntax:
SET key value
Example:
SET user:123 name “John Doe” email “john@example.com” age 30
Time Complexity: O(1)
Complete Guide to Redis Commands
Redis is an open-source, advanced key-value store and an apt solution for building high-performance, scalable web applications. Redis has three main peculiarities that set it apart:
- Redis holds its database entirely in the memory, using the disk only for persistence.
- Redis has a relatively rich set of data types compared to many key-value data stores.
- Redis can replicate data to any number of slaves.
Table of Content
- 1. KEY-VALUE OPERATIONS
- 1.1) SET:
- 1.2) GET:
- 1.4) DEL:
- 1.4) EXISTS:
- 1.5) TTL:
- 1.6) EXPIRE :
- 1.7) INCR
- 1.8) DECR
- 1.9) APPEND
- 2. LISTS:
- 2.1) LPUSH
- 2.2) RPUSH
- 2.3) LPOP
- 2.4) RPOP
- 2.5) LLEN
- 2.5) LRANGE
- 3. SETS:
- 3.1) “sadd” command:
- 3.2) “smembers” command:
- 3.3) “scard” command:
- 3.4) “sismember” command:
- 3.5) “sdiff” command:
- 3.6) “sdiffstore” command:
- 3.7) “sinter” command:
- 3.8) “sinterstore” command:
- 3.9) “sunion” command:
- 3.10) “sunionstore” command:
- 3.11) “srem” command:
- 4. HASHES:
- 4.1) HSET (Hash Set):
- 4.2) HGET (Hash Get):
- 4.3) HDEL (Hash Delete):
- 4.4) HGETALL (Hash Get All):
- 4.5) HKEYS (Hash Keys):
- 4.6) HVALS (Hash Values):
- 5. PUB/SUB:
- 5.1) PUBLISH
- 5.2) SUBSCRIBE
- 5.3) UNSUBSCRIBE
- 6. OTHER COMMANDS:
- 6.1) SELECT
- 6.2) FLUSHDB
- 6.3) SAVE
- 6.4) BGSAVE
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