清空/删除 Redis 中的集合? [英] Empty/delete a set in Redis?

问题描述

也许我只是瞎了眼，但我在 Redis 中没有看到明确的 set 命令清空现有集合(不清空整个数据库).就目前而言，我正在与自身做一个集合差异并将其存储回自身:

Maybe I'm just blind, but I don't see an explicit set command in Redis for emptying an existing set (without emptying the entire database). For the time being, I'm doing a set difference on the set with itself and storing it back into itself:

redis> SMEMBERS metasyn
1) "foo"
2) "bar"
redis> SDIFFSTORE metasyn metasyn metasyn
(integer) 0
redis> SMEMBERS metasyn
(empty list or set)

但这看起来有点傻……有更好的方法吗?

But that looks a little silly... is there a better way to do this?

推荐答案

你可以用 DEL 彻底删除集合.

You could delete the set altogether with DEL.

DEL metasyn

从 redis 控制台，

From redis console,

redis> SMEMBERS metasyn
1) "foo"
2) "bar"
redis> DEL metasyn
(integer) 1
redis> SMEMBERS metasyn
(empty list or set)

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