In Redis, the ZINCRBY command increments the score of a given member in a sorted set.
Tag: commands
Redis ZREVRANGE Replacement
Starting with Redis 6.2.0, the ZRANGE command added the REV, BYSCORE, BYLEX and LIMIT options. The addition of the first three means that the ZRANGE command can now do what the ZREVRANGE, ZRANGEBYSCORE, ZREVRANGEBYSCORE, ZRANGEBYLEX and ZREVRANGEBYLEX commands can do.
As a result, those commands are now deprecated (as of Redis 6.2.0).
Therefore, we should no longer use the ZREVRANGE command when we need to return a sorted set in descending order. Instead, we should use the ZRANGE command with the REV argument.
Redis BZPOPMAX Command Explained
In Redis, the BZPOPMAX command is the blocking variant of the ZPOPMAX command.
The BZPOPMAX command works similar to ZPOPMAX when any of the sorted sets contain elements. That is, it pops a member with the highest score from the sorted set.
Redis BZPOPMIN Command Explained
In Redis, the BZPOPMIN command is the blocking variant of the ZPOPMIN command.
The BZPOPMIN command works similar to ZPOPMIN when any of the sorted sets contain elements. That is, it pops a member with the lowest score from the sorted set.
Redis ZPOPMAX Command Explained
In Redis, the ZMPOPMAX command removes and returns (pops) members with the highest scores from the specified sorted set. By default it pops one member, but we can also specify how many members we want to pop.
Redis ZPOPMIN Command Explained
In Redis, the ZMPOPMIN command removes and returns (pops) members with the lowest scores from the specified sorted set. By default it pops one member, but we can also specify how many members we want to pop.
Redis BZMPOP Command Explained
In Redis, the BZMPOP command is the blocking variant of the ZMPOP command.
The BZMPOP command works exactly like ZMPOP when any of the sorted sets contain elements. It also works exactly like ZMPOP when used inside a MULTI/EXEC block. That is, it pops one or more elements from the first non-empty sorted set in the provided list of keys.
However, if all of the specified sorted sets are empty, then BZMPOP will block the connection until another client adds members to one of the keys or until the specified timeout elapses. It’s possible to block the connection indefinitely by using a timeout of zero.
Redis ZMPOP Command Explained
In Redis, the ZMPOP command removes and returns one or more elements from the first non-empty sorted set in the provided list of keys.
The ZMPOP command was introduced in Redis 7.0.0.
Redis ZCARD Command Explained
In Redis, the ZCARD command returns the cardinality (number of elements) of a sorted set.
Redis ZINTERSTORE Command Explained
In Redis, the ZINTERSTORE command computes the intersection of the specified sorted sets and stores the result in the specified key. It works the same as the ZINTER command, except that it stores the result instead of returning it.
If the destination key already exists, it’s overwritten.
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