Commandssadd
SADD
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Redis Regular Inspection / Technical Support
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Redis Enterprise Server
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Add members to a set
Usage: sadd key member.
You can specify multiple members.
Example
| Command> | sadd myset "member_1" |
| Result> | 1 |
| Command> | sadd myset "member_2" "member_3" "member_4" |
| Result> | 3 returns the number of added members |
| Command> | smembers myset look up the members |
| Result> | 1) member_2 2) member_4 3) member_3 returned in no particular order 4) member_1 |
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To look up members in order, use Sorted Sets. |
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Members cannot be duplicated
A set cannot contain duplicate members.
Example
| Command> | sadd myset "member_2" |
| Result> | 0 not added because "member_2" already exists |
| Command> | sadd myset "member_2" "member_5" |
| Result> | 1 only "member_5" was added |
| Command> | smembers myset |
| Result> |
1) member_2 2) member_4 3) member_5 4) member_1 5) member_3 |
Syntax
SADD key member [member ...]
- Available since version 1.0.0.
- Time complexity is O(1).
- Since version 2.4 you can specify multiple members.
| SQL Insert | If you have Redis Enterprise 7.3.0 or later, try INSERT. |
| Related commands | SMEMBERS, SREM, SPOP, ZADD |
| Clients for Java | Jedis, Lettuce, Redisson | Clients for C | Hiredis |
| << SETS | SADD | SADDS >> |
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