Why NoSql-redis basic commands and redis are single-threaded

Yesterday, I introduced the basic operations of redis. Today, I will introduce the basic commands of redis.

 

1. First, let's first introduce redis, which has 16 databases by default.

You can use select to switch the database [similar to MySql's use] (if you don't switch, someone's database is 0);

select 3      switch database

DBSIZE     view the DB size!