Redis Zcount Command

Redis Sorted Sets (sorted set)

The Redis Zcount command is used to calculate the number of members within a specified score range in a sorted set.

Syntax

Basic syntax of the redis Zcount command is as follows:

redis　127.0.0.1:6379>　ZCOUNT　key　min　max

Available versions

>= 2.0.0

Return value

The number of members with scores between min and max.

Online Examples

redis　127.0.0.1:6379>　ZADD　myzset　1　"hello"
(integer)　1
redis　127.0.0.1:6379>　ZADD　myzset　1　"foo"
(integer)　1
redis　127.0.0.1:6379>　ZADD　myzset　2　"world"　3　"bar"
(integer)　2
redis　127.0.0.1:6379>　ZCOUNT　myzset　1　3
(integer)　4

Redis Sorted Sets (sorted set)