Redis Zrangebyscore Command

Redis Sorted Sets (sorted set)

Redis Zrangebyscore returns a list of members in the specified score range of the ordered set. The members of the ordered set are sorted in ascending order of score value (from small to large).

Members with the same score value are sorted in dictionary order (this property is provided by the ordered set and does not require additional calculation).

By default, the value range of the interval uses a closed interval (less than or equal to or greater than or equal to), and you can also use an optional open interval (less than or greater than) by adding the ( symbol before the parameter.

Take an example:

ZRANGEBYSCORE zset (1　5

Return all matching conditions 1 < score <= 5 members, while

ZRANGEBYSCORE zset (5　(10

Then return all members that meet the conditions 5 < score < 10 members.

Syntax

The basic syntax of the redis Zrangebyscore command is as follows:

redis　127.0.0.1:6379> ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT offset count]

Available Versions

>= 1.0.5

Return Value

List of sorted set members within a specified range, with optional score values.

Online Examples

redis　127.0.0.1:6379> ZADD salary　2500 jack　　　　　　　　　　　　　　　　　　　　　　　# Test data
(integer) 0
redis　127.0.0.1:6379> ZADD salary　5000 tom
(integer) 0
redis　127.0.0.1:6379> ZADD salary　12000 peter
(integer) 0
redis　127.0.0.1:6379> ZRANGEBYSCORE salary　-inf　+inf　　　　　　　　　　　　　　　# Display the entire sorted set
1) "jack"
2) "tom"
3) "peter"
redis　127.0.0.1:6379> ZRANGEBYSCORE salary　-inf　+inf WITHSCORES　　　　# Display the entire sorted set and member's score value
1) "jack"
2) ""2500"
3) "tom"
4) ""5000"
5) "peter"
6) ""12000"
redis　127.0.0.1:6379> ZRANGEBYSCORE salary　-inf　5000 WITHSCORES　　　　# Display salary <=5000 all members
1) "jack"
2) ""2500"
3) "tom"
4) ""5000"
redis　127.0.0.1:6379> ZRANGEBYSCORE salary (5000　400000　　　　　　　　　　　　　# Display salaries greater than　5000 less than or equal to　400000 member
1) "peter"

Redis Sorted Sets (sorted set)