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SREM

Last updated 
SREM key member [member ...]
Group
Set
Complexity
O(N) where N is the number of members to remove
Arity
-3 (at least 3 words, counting the command name)
Flags
write, fast
Keys
first 1, last 1, step 1
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SREM removes each member from the set stored at key. Members that are not in the set are ignored. When the last member is removed, the key is deleted.

Return value

Section titled “Return value”
Case RESP2 RESP3
Success Integer: the number of members that were removed Same
Key does not exist Integer 0 Same

SREM replies with a WRONGTYPE error if key holds a value that is not a set.

Examples

Section titled “Examples”
127.0.0.1:6379> SADD tags "redis" "cache" "db"
(integer) 3
127.0.0.1:6379> SREM tags "cache" "missing"
(integer) 1
127.0.0.1:6379> SMEMBERS tags
1) "redis"
2) "db"

Compatibility

Section titled “Compatibility”

Same as Redis 7.4 and Valkey 8.

See also

Section titled “See also”

SADD, SPOP, SMOVE