PING
String skewer: SET runoobkey redis GET runoobkey DEL runoobkey
哈希（hash）：HMSET runoobkey name "redis tutorial" description "redis basic commands for caching" likes 20 visitors 23000 HGETALL runoobkey
List (List) or so: LPUSH runoobkey redis LPUSH runoobkey mongodb LRANGE mylist 0 - 1
集合（Set）：SADD runoobkey redis SADD runoobkey mongodb SMEMBERS runoobkey
有序集合（Sorted Set）：ZADD runoobkey 1 redis ZADD runoobkey 2 mongodb ZRANGE runoobkey 010 WITHSCORES
Redis HyperLogLog：PFADD runoobkey "redis" PFADD runoobkey "mongodb" PFCOUNT runoobkey
Redis 发布订阅：SUBSCRIBE redisChat PUBLISH redisChat "Redis is a great caching technique" PUBLISH redisChat "Learn redis by runoob.com"
Redis transaction:
Redis transactions can execute multiple commands at once with two important guarantees:
- Bulk operations are put into the queue buffer before sending the EXEC command.
- After receiving the EXEC command, the transaction is executed. Any command in the transaction fails to be executed, and the rest of the commands are still executed.
- During transaction execution, command requests submitted by other clients will not be inserted into the transaction execution command sequence.
A transaction goes through the following three stages from initiation to execution:
- Start business.
- Command enqueue.
- Execute the transaction.
redis 127.0.0.1:6379> MULTI OK redis 127.0.0.1:6379> SET book-name "Mastering C++ in 21 days" QUEUED redis 127.0.0.1:6379> GET book-name QUEUED redis 127.0.0.1:6379> SADD tag "C++" "Programming" "Mastering Series" QUEUED redis 127.0.0.1:6379> SMEMBERS tag QUEUED redis 127.0.0.1:6379> EXEC 1) OK 2) "Mastering C++ in 21 days" 3) (integer) 3 4) 1) "Mastering Series" 2) "C++" 3) "Programming"
Redis 脚本：EVAL "return {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}"2 key1 key2 first second
Redis Select command:
redis 127.0 . 0.1 : 6379 > SET db_number 0 # default to use database number 0 OK redis 127.0 . 0.1 : 6379 > SELECT 1 # Use database number 1 OK redis 127.0 . 0.1 : 6379 [ 1 ]> GET db_number # Has switched to database No. 1 , note that Redis now has more command prompts [ 1 ] (nil) redis 127.0.0.1:6379[1]> SET db_number 1 OK redis 127.0.0.1:6379[1]> GET db_number "1" redis 127.0 . 0.1 : 6379 [ 1 ]> SELECT 3 # Switch to database No. 3 again OK redis 127.0 . 0.1 : 6379 [ 3 ]> # Prompt changed from [ 1 ] to [ 3 ]