Redis Sorted Sets: ZREMRANGEBYLEX

Redis ZREMRANGEBYLEX Command

Redis ZREMRANGEBYLEX command is used to remove all elements in the sorted set stored at key between the lexicographical range specified by minimum and maximum values, when all the elements in a sorted set are inserted with the same score, in order to force lexicographical ordering.

Here are some common uses and scenarios for the "ZREMRANGEBYLEX" command:

• Lexicographical Range Removal: Remove members from a sorted set within a specified lexicographical range.
• Data Management: Clean up and manage data by removing members based on their keys.
• String Handling: Manage strings by removing elements within specific lexicographical bounds.
• Indexing: Efficiently remove elements from sorted sets based on lexicographical criteria.
• Data Integrity: Ensure data integrity by removing elements that fall within undesired lexicographical ranges.

Syntax:

ZREMRANGEBYLEX key min max

Available since

2.8.9.

Return Value

Integer reply, the number of elements removed.

Return Value Type

Integer

Example: Redis ZREMRANGEBYLEX

127.0.0.1:6379> ZADD mycityset 0 Delhi 0 Mumbai 0 Hyderabad 0 Kolkata 0 Chennai
(integer) 5
127.0.0.1:6379> ZRANGEBYLEX mycityset - +
1) "Chennai"
2) "Delhi"
3) "Hyderabad"
4) "Kolkata"
5) "Mumbai"
127.0.0.1:6379> ZREMRANGEBYLEX mycityset "(Hyderabad" "(Mumbai"
(integer) 1
127.0.0.1:6379> ZRANGEBYLEX mycityset - +
1) "Chennai"
2) "Delhi"
3) "Hyderabad"
4) "Mumbai"
127.0.0.1:6379> ZREMRANGEBYLEX mycityset "[Hyderabad" "(Mumbai"
(integer) 1
127.0.0.1:6379> ZRANGEBYLEX mycityset - +
1) "Chennai"
2) "Delhi"
3) "Mumbai"
127.0.0.1:6379> ZREMRANGEBYLEX mycityset "[Hyderabad" "[Mumbai"
(integer) 1
127.0.0.1:6379> ZRANGEBYLEX mycityset - +
1) "Chennai"
2) "Delhi"

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