- Usage:
-
SADD key member [ member ... ]
- Complexity:
- O(1) for each element added, so O(N) to add N elements when the command is called with multiple arguments.
- Since:
- 1.0.0
- ACL Categories:
- @set, @write, @fast
Add the specified members to the set stored at key.
Specified members that are already a member of this set are ignored.
If key does not exist, a new set is created before adding the specified
members.
An error is returned when the value stored at key is not a set.
Examples
127.0.0.1:6379> SADD myset "Hello"
(integer) 1
127.0.0.1:6379> SADD myset "World"
(integer) 1
127.0.0.1:6379> SADD myset "World"
(integer) 0
127.0.0.1:6379> SMEMBERS myset
1) "Hello"
2) "World"
RESP2/RESP3 Reply
Integer reply: the number of elements that were added to the set, not including all the elements already present in the set.
History
| Version | Change |
|---|---|
| 2.4.0 | Accepts multiple |
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