华夏棋牌

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Cluster cluster addslots(集群 槽位) cluster count failure reports(集群计数掉落败申报) cluster countkeysinslot cluster delslots cluster failover cluster forget cluster getkeysinslot cluster info cluster keyslot(集群键槽) cluster meet cluster nodes(集群节点) cluster replicate(集群复制) cluster reset(集群重置) cluster saveconfig cluster set config epoch cluster setslot cluster slaves cluster slots readonly readwrite Connection auth echo ping quit select swapdb Geo geoadd geodist geohash geopos georadius georadiusbymember Hashes hdel hexists hget hgetall hincrby hincrbyfloat hkeys hlen hmget hmset hscan hset hsetnx hstrlen hvals HyperLogLog pfadd pfcount pfmerge Keys del dump exists expire expireat keys migrate move object persist pexpire pexpireat pttl randomkey rename renamenx restore scan sort touch ttl type unlink wait Lists blpop brpop brpoplpush lindex linsert llen lpop lpush lpushx lrange lrem lset ltrim rpop rpoplpush rpush rpushx Pub/Sub psubscribe publish pubsub punsubscribe subscribe unsubscribe Scripting eval evalsha script debug script exists script flush script kill script load Server bgrewriteaof bgsave client getname client kill client list client pause client reply client setname command command count command getkeys command info config get config resetstat config rewrite config set dbsize debug object debug segfault flushall flushdb info lastsave monitor role save shutdown slaveof slowlog time Sets sadd scard sdiff sdiffstore sinter sinterstore sismember smembers smove spop srandmember srem sscan sunion sunionstore Sorted Sets zadd zcard zcount zincrby zinterstore zlexcount zrange zrangebylex zrangebyscore zrank zrem zremrangebylex zremrangebyrank zremrangebyscore zrevrange zrevrangebylex zrevrangebyscore zrevrank zscan zscore zunionstore Strings append bitcount bitfield bitop bitpos decr decrby get getbit getrange getset incr incrby incrbyfloat mget mset msetnx psetex set setbit setex setnx setrange strlen Transactions discard exec multi unwatch watch
文字

HDEL key field [field ...]

自2.0.0起可用。

时间严重年夜度:华夏棋牌 O(N)其中 N 是要删除的字段数。

从中存储的哈希中删除指定的字段key。此哈希中不存在的指定字段将被忽视。假定key不存在,则将其视为空散列,并前往此敕令0

前往值

整数回复:从散列中删除的字段数目,不网罗指定但不存在的字段。

History

  • >= 2.4:吸收多个field参数。早于2.4版的 Redis 版本只能删除每个召唤的字段。

要在早期版本中以原子要领从哈希中删除多个字段,请应用 MULTI / EXEC 块。

例子

redis>  HSET myhash field1 "foo" (integer) 1 

redis>  HDEL myhash field1 (integer) 1 

redis>  HDEL myhash field2 (integer) 0

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