我怎么知道给定键值的数据类型? [英] How do I know the data type of the value of a given key?
问题描述
我似乎找不到有关Redis命令的有用信息。我想知道给定键值的数据类型。例如,列出我数据库的所有键,我运行以下命令:
I can't seem to find useful information about Redis commands. I want to know the data type of the value of a given key. For instance to list all the keys of my database I run the following command:
keys *
在我的设置中,我得到以下结果:
In my setup, I get the following result:
1) "username:testuser:uid"
2) "uid:1:first"
3) "uid:1:email"
4) "uid:1:hash"
5) "global:next_uid"
6) "members:email"
7) "uid:1:username"
8) "uid:1:last"
9) "uid:1:salt"
10) "uid:1:access"
11) "uid:1:company"
12) "email:testuser@gmail.com:uid"
13) "uid:1:phone_number"
如何我知道键 members:email
包含的数据类型吗?我试图运行 get member:email
,但是对键持有错误类型的值却出现错误(error)ERR Operation
How do I know what data type the key members:email
contains? I tried to run get members:email
but and I get the error (error) ERR Operation against a key holding the wrong kind of value
有什么想法吗?
推荐答案
您可以使用类型命令:
http://redis.io/commands/type
You could use the type command: http://redis.io/commands/type
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