Redis Zrank command

grammar

redis Zrank basic command syntax is as follows:

redis 127.0.0.1:6379> ZRANK key member

Available versions

> = 2.0.0

return value

If the member is a key member of an ordered set, return the ranking member. If the member is not a member of an ordered set of key returns nil.

Examples

redis 127.0.0.1:6379> ZRANGE salary 0 -1 WITHSCORES        # 显示所有成员及其 score 值
1) "peter"
2) "3500"
3) "tom"
4) "4000"
5) "jack"
6) "5000"

redis 127.0.0.1:6379> ZRANK salary tom                     # 显示 tom 的薪水排名，第二
(integer) 1

Redis ordered set (sorted set)