Non-stop Service: Active-Active Duplexing

Commands

Introduction
Strings
- STRINGS Introduction
- SET
- DEL
- GET
- GETEX 6.2
- GETDEL 6.2
- INCR
- DECR
- INCRBY
- DECRBY
- INCRBYFLOAT
- SETNX
- SETEX
- PSETEX
- MSET
- MGET
- MSETNX
- APPEND
- STRLEN
- SETRANGE
- GETRANGE
- STRALGO
- GETSET
Lists
- LISTS Introduction
- LPUSH
- RPOP
- LPOP
- RPUSH
- LRANGE
- LLS Ent
- LLEN
- LINDEX
- LPOS 6.0.6
- LSET
- LINSERT
- LREM
- LRM Ent
- LTRIM
- LMOVE 6.2
- RPOPLPUSH
- LPUSHX
- RPUSHX
- BLPOP
- BRPOP
- BLMOVE 6.2
- BRPOPLPUSH
Sets
- SETS Introduction
- SADD
- SREM
- SRM Ent
- SMEMBERS
- SLS Ent
- SCARD
- SLEN Ent
- SUNION
- SINTER
- SDIFF
- SUNIONSTORE
- SINTERSTORE
- SDIFFSTORE
- SISMEMBER
- SMISMEMBER 6.2
- SMOVE
- SPOP
- SRANDMEMBER
- SSCAN
Sorted Sets (ZSets)
Hashes
- HASHES Introduction
- HSET
- HDEL
- HRM Ent
- HGET
- HLEN
- HMSET
- HMGET
- HKEYS
- HVALS
- HGETALL
- HLS Ent
- HSTRLEN
- HINCRBY
- HINCRBYFLOAT
- HEXISTS
- HSETNX
- HSCAN
- HRANDFIELD 6.2
Streams
- STREAMS Introduction
- XADD
- XLEN
- XRANGE
- XREVRANGE
- XREAD
- XDEL
- XTRIM
- XGROUP
- XREADGROUP
- XACK
- XPENDING
- XCLAIM
- XAUTOCLAIM 6.2
- XINFO
Common Keys
- COMMON Introduction
- EXISTS
- UNLINK
- KEYS
- LS Ent
- LL Ent
- RM Ent
- SCAN
- SORT
- RENAME
- RENAMENX
- EXPIRE
- EXPIREAT
- TTL
- PEXPIRE
- PEXPIREAT
- PTTL
- PERSIST
- TYPE
- OBJECT
- RANDOMKEY
- COPY 6.2
- MOVE
- DUMP
- RESTORE
- MIGRATE
- TOUCH
- DB Ent 8.1.0
- DBALL Ent 8.1.0
- ETYPE Ent 8.1.0
- EKEYS Ent 8.1.0
- ELS Ent 8.1.0
- ELL Ent 8.1.0
- ERM Ent 8.1.0
- LOLWUT
- LS(old)
- LL(old)
Recyclebin New
Bits
- BITS Introduction
- SETBIT
- GETBIT
- BITOP
- BITCOUNT
- BITFIELD
- BITPOS
Pub/Sub
Lua Script
HyperLogLog(PF)
Geo
Connection
- Connection Introduction
- CONNECT
- AUTH
- HELLO 6.0
- ECHO
- PING
- QUIT
- SELECT
- CD Ent
- SWAPDB
- RESET 6.2
Redis on Windows

HRANDFIELD

Apply for Redis Developer Course	Redis Regular Inspection / Technical Support	Redis Enterprise Server

Get a random field

Example

Command>	hmset myhash f1 v1 f2 v2 f3 v3 f4 v4 f5 v5 f6 v6
Result>	OK
Command>	hrandfield myhash
Result>	f3

Get multiple fields: count

To get multiple fields, use the count option.
+count returns fields without duplicates. If you specify a count larger than the number of fields, it returns as many fields as exist.
-count returns fields with duplicates allowed. If you specify a count larger than the number of fields, it returns the specified count.
The withvalues option can be used only when count is used.

Example

Command>	hrandfield myhash 3
Result>	1) "f6" 2) "f5" 3) "f3"
Command>	hrandfield myhash -3
Result>	1) "f2" 2) "f4" 3) "f4"

Syntax

HRANDFIELD key [count [WITHVALUES]]

Available since version 6.2.0.
Time complexity is O(N). N is the number of returned fields.

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