Description:
Determine the ranking of a member in a sorted set.
Syntax:
redis_zrank(con,key,member)
Note:
External library function. By default the members in a sorted set is arranged in an ascending order; use @z option to arrange them in a descending order.
The rankings start with 0, meaning the ranking of the member with the smallest score is 0.
If the given member doesn’t belong to the sorted set, return an empty table.
Options:
@z Arrange sorted set members in descending order.
Parameters:
con |
Database connection string |
key |
Sorted set name |
member |
Sorted set member |
Return value:
Table sequence
Example:
|
A |
|
1 |
=redis("192.168.18.131:6379","runqian") |
|
2 |
=redis_zrangebyscore(A1,"salary","-inf","+inf","WITHSCORES") |
|
3 |
=redis_zrank(A1,"salary","jack") |
|
4 |
=redis_zrank@z(A1,"salary","jack") |
|