SADD

Synopsis

SADD key value [value ...]
This command adds one or more given values to the set that is associated with the given key.

  • If the `key` does not exist, a new set is created, and members are added with the given values.
  • If the `key` is associated with a value that is not a set, an error is raised.
  • If a specified `value` already exists in the given set, that `value` is ignored and not counted toward the total of newly added members.

    • Return value

    Depends on the configuration parameter emulate_redis_responses.

  • If `emulate_redis_responses` is `true`, returns the number of new members that were added by this command not including the duplicates.
  • If `emulate_redis_responses` is `false`, returns OK.

    • Examples

  • `emulate_redis_responses` is `true`. 
    $ SADD yuga_world "Africa"

    1

    $ SADD yuga_world "America"

    1

    $ SMEMBERS yuga_world

    1) "Africa"
2) "America"
  • `emulate_redis_responses` is `false`. 
    $ SADD yuga_world "Africa"

    "OK"

    $ SADD yuga_world "America"

    "OK"

    $ SMEMBERS yuga_world

    1) "Africa"
2) "America"

    • See also

    scard, sismember, smembers, srem