content/commands/zlexcount.md
When all the elements in a sorted set are inserted with the same score, in order to force lexicographical ordering, this command returns the number of elements in the sorted set at key with a value between min and max.
The min and max arguments have the same meaning as described for
[ZRANGEBYLEX]({{< relref "/commands/zrangebylex" >}}).
Note: the command has a complexity of just O(log(N)) because it uses elements ranks (see [ZRANK]({{< relref "/commands/zrank" >}})) to get an idea of the range. Because of this there is no need to do a work proportional to the size of the range.
{{% redis-cli %}} ZADD myzset 0 a 0 b 0 c 0 d 0 e ZADD myzset 0 f 0 g ZLEXCOUNT myzset - + ZLEXCOUNT myzset [b [f {{% /redis-cli %}}
| Redis Software | Redis Cloud | <span style="min-width: 9em; display: table-cell">Notes</span> | |:----------------------|:-----------------|:------| | <span title="Supported">✅ Standard</span> <span title="Supported"><nobr>✅ Active-Active</nobr></span> | <span title="Supported">✅ Standard</span> <span title="Supported"><nobr>✅ Active-Active</nobr></span> | |
{{< multitabs id="zlexcount-return-info" tab1="RESP2" tab2="RESP3" >}}
Integer reply: the number of members in the specified score range.
-tab-sep-
Integer reply: the number of members in the specified score range.
{{< /multitabs >}}