Linux-nosql's Redis (iii)

One, Redis data common operation 1, string common operation

Set Key1 Aminglinux

Get Key1

Set Key1 aming//A key corresponds to a value, multiple assignments, overwriting the previous value

SETNX Key2 AAA//return 1

Get Key2 setnx key2 BBB//Return 0 Description: Setnx If key exists, returns 0, does not exist will create this key directly

Setex Key3 10 1//This is used to set the expiration time for key

Mset Key1 1 Key2 2 Key3 3//Set multiple keys simultaneously

Mget Key1 Key2 Key3

2, hash data common operation

Hset user1 name aming//Build Hash

Hset User1 age 30

Hset User1 Job It

Hgetall user1

Hmset user2 name aming Age job IT//bulk build key value pair

Hmget user2 hmget user2 name Age job Hdel user2 job//delete specified filed

Hkeys User2//Print all keys

Hvals User2//Print all values

Hlen user2//view hash There are several filed

3, list Data common operation

Lpush lista A//pressing an element from the left

Lpush lista b lrange lista 0-1//0 for head,-1 for tail

Lpop lista//Remove from left

Rpush lista 1//Pressing an element from the right

Rpush lista 2 lrange lista 0-1

Rpop lista//Take the first element from the right

Linsert lista before 2 3//in front of 2 insert an element of 3

LSet lista 4 bbb//change 5th element to BBB

Lindex lista 0//view 1th element

Lindex lista 3//view 4th element

Llen lista//View a list of several elements

4. Common operation of SET data

Sadd Seta AAA//Put elements into the collection Seta

Smembers Seta//View all elements in a collection

Srem Seta AAA//delete element

Spop Seta//randomly take out an element, delete

Sdiff Seta SETB//differential set, Seta as standard

Sdiffstore setc Seta SETB//differential set and stored in SETC

Sinter Seta SETB//Seek intersection

Sinterstore setd Seta SETB//The intersection is stored setd

Sunion Seta SETB//Request and set

Sunionstore Sete Seta SETB//Request and save to Sete

Sismember Seta AAA//Determine if an element belongs to a collection

Srandmember Seta//random extraction of an element without deleting

5, Zset Data common operation

Zadd Zseta 11 123//Create an ordered collection

Zrange Zseta 0-1//Show all elements in order

Zrange Zseta 0-1 withscores//can bring the score

Zrem Zseta 222//delete specified element

Zrank Zseta 222//Returns the index value of the element, starting from 0, sorted by score

Zrevrank Zseta 222//Ibid, different, sorted by score reverse order

Zrevrange Zseta 0-1 Reverse order displays all elements with a score

Zcard Zseta//Returns the number of all elements in the collection

Zcount Zseta 1 10//Returns the number of elements in the score range 1-10

Zrangebyscore Zseta 1 10//Return the element of the score range 1-10

Zremrangebyrank Zseta 0 2//delete element of index range 0-2, sort by score

Zremrangebyscore Zseta 1 10//Delete the element of the score range 1-10

Second, Redis key value related operations

Keys *//Remove all keys

Keys my*//fuzzy matching

exists name//has the name key to return 1, otherwise returns 0;

Del key1//delete a key//successfully return 1, otherwise return 0;

EXPIRE Key1 100//Set Key1 expires after 100s

The TTL key//View key still has how long to expire, unit is s, when key does not exist, return-2. Returns 1 when key exists but no remaining lifetime is set. Otherwise, the remaining lifetime of the key is returned. Select 0//represents selecting the current database and entering the 0 database by default

Move age 1//moves age to 1 database

Persist Key1//Cancel the expiration time of the Key1

Randomkey//Randomly returns a key

Rename oldname newname//rename key

Type key1//types of return keys

Iii. operations related to Redis services

Dbsize//Returns the number of keys in the current database

Info//Return Redis database status information

FLUSHDB//empties all keys in the current database

Flushall//Clears all keys from all databases

Linux-nosql's Redis (iii)