--- title: Redis --- ### Redis datastructures ``` string , list , hash , set and sorted set ``` #### String ##### Set value ``` set set name "hiren" ``` ##### Get value ``` get get name #return "hiren" ``` ##### Get value using range ``` getrange getrange name 0 3 #return "hire" ``` ##### Set value using range ``` setrange setrange name 5 RST ``` ##### Override value ``` getset getset name "Rater Santo Tara" ``` ##### Multiset value ``` mset mset name "Rater Santo Tara" age 20 ``` ##### Increment value (only works for numbers) ``` incr age ## increment age by 1 ``` ##### Decrement value ``` decr ``` ##### Increment and decrement by specific number ``` incrby 5 decrby 20 ``` ##### Float increment (only for integer ) ``` incrbyfloat ``` ##### Set expire time ``` setex setex name 4 hiren ``` ##### Only set value if doesnt exits ``` setnx ``` ##### Multi setnx ``` msetnx ``` ##### Length of a value ``` strlen ``` #### List ##### Lpush ( Left push ) ``` lpush ``` ##### Rpush ( Right push ) ``` rpush ``` ##### Lpushx and Rpushx (push if the list is exits) ``` lpushx rpushx ``` ##### Length of a list ``` llen llen hiren ``` ##### Get values ``` lrange ``` Tips : For grabbing whole list use starting position = 0 and ending position = -1 ##### Pop from left or right side ``` lpop rpop ``` ##### Remove value ``` lrem 2 ``` ##### Insert middle ``` linsert before linsert after ``` ##### Get value using index ``` lindex ``` ##### Set value using index ``` lset ``` ##### Trim ``` ltrim ``` ##### List sorting ##### Basic Sorting ``` sort ``` ##### Sort with limit ``` sort limit ``` ##### Sort descending or ascending ``` sort asc sort desc ``` ##### Sort characters ``` sort alpha ``` #### Hash ##### Set command ``` hset hset hiren age 20 ``` ##### Get command ``` hget ``` ##### Get all value ``` hgetall ``` ##### Return only keys or values ``` hvals hkeys ``` ##### Check value existence ``` hexits ``` ##### Increment ``` hincrby hincrbyfloat ``` ##### Check length ``` hlen ``` ##### Multiple get ``` hmget ``` ##### Multipke set ``` hmset ``` ##### Set if doesnt exits ``` hsetnx ``` ##### Delete ``` hdel ``` #### Set ##### Add single or multiple value ``` sadd ``` ##### Remove value ``` srem ``` ##### Show all members ``` smembers ``` ##### CHeck if already exists or not ``` sismember ``` ##### Check how many item in set ``` scard ``` ##### Take random item from set ``` sranmember ``` ##### Take random member out of the set ``` spop ``` ##### Check member defference in two set ``` sdiff ``` ##### Check difference and store in new set ``` sdiff ``` ##### Intersection(common members) in both set ``` sinter ``` ##### Union between sets ``` sunion ``` ##### Store union result ``` sunionstore ``` ##### Move value from 1 set to another ``` smove ``` ## Other Commands ##### Search all keys ``` keys * ``` ##### Search using specific pattern ``` keys hiren* keys hire ``` ##### Check if key exist ``` exits ``` ##### Check type of a key ``` type ``` ##### Delete key ``` del ``` ##### Move to different database ``` move move hiren 2 ``` ##### Select database ``` select select 1 ``` ##### Expire ``` expire ``` ##### Time to live ``` ttl ```