清空/删除 Redis 中的集合? [英] Empty/delete a set in Redis?
本文介绍了清空/删除 Redis 中的集合?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
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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