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Empty/delete a set in Redis?

开发者 https://www.devze.com 2023-03-12 01:37 出处:网络
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开发者_JAVA技巧 differ

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开发者_JAVA技巧 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)

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


You could delete the set altogether with DEL.

DEL metasyn

From redis console,

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

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