How create db (key_space) in redis
<p>I am a redis beginer. I am learning it to using for ruby on rails.<br>
Redis support many db (it can upto 30 ?). Normal to access client redis console I run</p>

<pre><code>redis-cli
</code></pre>

<p>in terminal. And default it auto go into db 0. If it have many db then can use command <code>select index</code> to select to db that want to access.<br>
But I don't know any way to create one db to use.
<br>
Can you help me. Thanks so much.!</p>