Commandszrevrange
ZREVRANGE
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Query the member list (from highest score)
Usage: zrevrange key start stop.
start stop are indexes. In zrange index 0 is the lowest score, but in REV index 0 is the highest score.
Members are returned from highest score. If scores are equal, members are compared.
Use 0 -1 to query all members.
Example
| Command> | zadd myzip 9926 "Seoul" 3426 "Busan" 2465 "Daegu" 2826 "Incheon" 1514 "Gwangju" 12137 "Gyeonggi" |
| Result> | 6 |
| Command> | zrevrange myzip 0 -1 withscores Shown from highest score |
| Result> |
0) 12137 -> Gyeonggi 1) 9926 -> Seoul 2) 3426 -> Busan 3) 2826 -> Incheon 4) 2465 -> Daegu 5) 1514 -> Gwangju |
| The data above is 2013 population by city/province (unit: thousands). |
Range query
Example
| Command> | zrevrange myzip 0 1 withscores Query the 2 most populous cities/provinces |
| Result> |
0) 12137 -> Gyeonggi 1) 9926 -> Seoul |
| Command> | zrevrange myzip -2 -1 withscores Query the 2 least populous cities/provinces |
| Result> |
-2) 2465 -> Daegu -1) 1514 -> Gwangju |
Syntax
ZREVRANGE key start stop [withscores]
- Available since version 1.2.0.
- Time complexity is O(log(N)+M). N is the number of members in the set, and M is the number of members returned.
| Related commands | ZRANGE, LRANGE |
| Clients for Java | Jedis, Lettuce, Redisson | Clients for C | Hiredis |
| << ZLS | ZREVRANGE | ZRANGEBYSCORE >> |
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