Simple additions and deletions of the five data types of Redis

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Redis Five types of data type of simple additions and deletions to change the command???

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Suppose you have a Redis server installed;
Suppose you have opened the Redis CLI command-line tool;
Let's say you know something about Redis;

Redis simple additions and deletions to find examples

Example one: string additions and deletions

#增加一个key为ay_key的值127.0.0.1:6379> set ay_key "ay"OK#查询ay_key的值127.0.0.1:6379> get ay_key"ay"#修改ay_key的值127.0.0.1:6379> set ay_key "new_ay"OK127.0.0.1:6379> get ay_key"new_ay"#修改ay_key名称127.0.0.1:6379> rename ay_key new_ay_keyOK127.0.0.1:6379> keys *1) "new_ay_key"#删除ay_key127.0.0.1:6379> del ay_key(integer) 0#查询是否存在ay_key  0127.0.0.1:6379> exists ay_key(integer) 0

Example two: Adding and deleting of Set set

#删除当前选择数据库中的所有key127.0.0.1:6379> flushdbOK#生成set集合，添加4个数据127.0.0.1:6379> sadd set_ay_key "ay" "al" "xy" "xl"(integer) 4#查询set里面所有值127.0.0.1:6379> smembers set_ay_key1) "xy"2) "al"3) "ay"4) "xl"#删除value为"xl" , 返回 1  如果没有返回 0127.0.0.1:6379> srem set_ay_key "xl"(integer) 1127.0.0.1:6379> smembers set_ay_key1) "xy"2) "al"3) "ay"#添加value为"xl"127.0.0.1:6379> sadd set_ay_key "xl"(integer) 1127.0.0.1:6379> smembers set_ay_key1) "xy"2) "al"3) "ay"4) "xl"#添加value为"xl"  添加不进去，但也不报错，set是不允许重复的127.0.0.1:6379> sadd set_ay_key "xl"(integer) 0#不多解释127.0.0.1:6379> sadd set_ay_key "xl"(integer) 0#不多解释127.0.0.1:6379> sadd set_ay_key "xl"(integer) 0

Example three: List collection of additions and deletions to search

#添加key为list_ay_key的list集合127.0.0.1:6379> lpush list_ay_key "ay" "al" "xy" "xl"(integer) 4#查询key为list_ay_key的集合127.0.0.1:6379> lrange list_ay_key 0 -11) "xl"2) "xy"3) "al"4) "ay"#往list尾部添加元素127.0.0.1:6379> rpush list_ay_key "together"(integer) 5#往list头部添加元素127.0.0.1:6379> lpush list_ay_key "first"(integer) 6#查询list集合127.0.0.1:6379> lrange list_ay_key 0 -11) "first"2) "xl"3) "xy"4) "al"5) "ay"6) "together"#更新index为0的值    127.0.0.1:6379> lset list_ay_key 0 "update_first"OK127.0.0.1:6379> lrange list_ay_key 0 -11) "update_first"2) "xl"3) "xy"4) "al"5) "ay"6) "together"#删除index为1上的值127.0.0.1:6379> lrem list_ay_key 1 "update_first"(integer) 1127.0.0.1:6379> lrange list_ay_key 0 -11) "xl"2) "xy"3) "al"4) "ay"5) "together"

Example four: Hash collection (Java-like) additions and deletions

 127.0.0.1:6379> flushdbok# generates a hash collection and adds a key of Uuid_one value to "12345" 127.0.0.1:6379> hset hash_ay_key "uuid_ One "12345" (integer) 1127.0.0.1:6379> hlen hash_ay_key (integer) # returns the collection all Key127.0.0.1:6379> Hkeys hash_ay_key1 ) "Uuid_one" #返回集合所有value127 .0.0.1:6379> hvals hash_ay_key1) "12345" #集合添加值127 .0.0.1:6379> hset hash_ay_key "uuid _two "22222" (integer) # Collection add value 127.0.0.1:6379> hset hash_ay_key "Uuid_three" "33333" (integer) # get key to Uuid_ The value of one 127.0.0.1:6379> hget hash_ay_key uuid_one "12345" #删除key为uuid_three的值127 .0.0.1:6379> hdel hash_ay_key uuid_ Three (integer) 1127.0.0.1:6379> hkeys hash_ay_key1) "Uuid_one" 2) "Uuid_two" #获得所有, including key and value127.0.0.1:6379> Hgetall hash_ay_key1) "Uuid_one" 2) "12345" 3) "Uuid_two" 4) "22222" #更新key为uuid_one的值127 .0.0.1:6379> hset Hash_ay_key Uuid_one "11111" (integer) 0127.0.0.1:6379> hset hash_ay_key "Uuid_one" "11111" (integer) 0127.0.0.1:6379> hgetall Hash_ay_key1) "Uuid_one" 2) "11111" 3) "Uuid_two" 4) "22222" 

Example four: SortedSet collection of additions and deletions

SortedSet is an ordered set set

#sorted set添加值ay 排序值为 1127.0.0.1:6379> zadd zset_ay_key 1 "ay"(integer) 1127.0.0.1:6379> zadd zset_ay_key 2 "al"(integer) 1127.0.0.1:6379> zadd zset_ay_key 3 "xy"(integer) 1127.0.0.1:6379> zadd zset_ay_key 4 "xl"(integer) 1#查询所有的值127.0.0.1:6379> zrange zset_ay_key 0 -11) "ay"2) "al"3) "xy"4) "xl"#删除所有的值127.0.0.1:6379> zrem zet_ay_key "xl"(integer) 0127.0.0.1:6379> zrange zset_ay_key 0 -11) "ay"2) "al"3) "xy"4) "xl"

Don't write, good tired, all the same, look at the following article .....

refer to the master article

Http://www.runoob.com/redis/redis-sorted-sets.html

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Simple additions and deletions of the five data types of Redis