Shulou(Shulou.com)06/01 Report--

This article is about how to use Redis hash. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Redis hash (Hash)

The KV mode remains the same, but V is a key-value pair

1.hset/hget/hmset/hgetall/hdel

Hset: addin

Hget: get

Hmset: adding in batch

Hgetall: get all the key-value information in key

Hdel: delete an attribute in key

127.0.0.1 hset user id 9736 > hget user sex 11 (integer) 1127.0.0.1 hget user id 9736 > hset user name blue sex man (integer) 2127.0.1 name li4 age 9736 > hget user name sex (error) ERR wrong number of arguments for 'hget' command127.0.0.1:9736 > hget user name "blue" 127.0.1 > hget user sex "man" 127.0.0.1 > hmset customer id 11 name li4 age 26OK127.0.0.1:9736 > hmget customer id name age1) "11" 2) "li4" 3) "26" 127.0.0.1 li4 9736 > HGETALL customer 1) "id" 2) "11" 3) "name" 4) "li4" 5) "age" 6) "26" 127.0.1) 9736 > hdel user sex (integer) 1127.0.0.1) 9736 > HGETALL user1) "id" 2) "11" 3) "4)" blue "2. Hlen gets the number of key-value pairs 127.0.0.1 HLEN user 9736 > HLEN user (integer) 2127.0.1 integer 9736 > HLEN customer (integer) 33.hexists key a value in the key key127.0.0.1:9736 > HGETALL user1)" id "2)" 11 "3)" name "4)" blue "127.0.0.1 HLEN user 9736 > hgetall customer1)" id "2)" 11 "3)" name " 4) "li4" 5) "age" 127.0.0.1 integer 9736 > HEXISTS user id (integer) 1127.0.1 VR 9736 > HEXISTS customer age (integer) 14.hkeys / hvals key list List of values 127.0.0.1 HKEYS customer1 9736) "id" 2) "name" 3) "age" 127.0.0.1 name 9736 > HVALS customer1) "11" 2) "li4" 3) "26" 5.hincrby/hincrbyfloat increments 127.0.0.1 age 9736 > HGETALL customer1) "id" 2) "11" 3) "name" 4) "li4" 5) "age" 6) "36" 127.0.0. 1id 9736 > HINCRBYfloat customer age 0.1 "36.1" 127.0.0.1 HGETALL customer 0.4 "36.5" 127.0.1 HGETALL customer 1) "id" 2) "11" 3) "name" 4) "li4" 5) "age" 6) "36.5" 6.hsetnx

Add key value if it does not exist, otherwise do not add

127.0.0.1 HSETNX customer email 9736 > HGETALL customer1) 1127.0.0.1 name 9736 > HGETALL customer1) "id" 2) "11" 3) "name" 4) "li4" 5) "age" 6) "36.5" 7) "email" 8) Thank you for reading! This is the end of the article on "how to use Redis hash". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.