mysql命令行客户端如何知道当前使用的是那个数据库

可以通过status命令查看

mysql> status
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mysql  Ver 14.14 Distrib 5.7.33, for Linux (x86_64) using  EditLine wrapper

Connection id:		43751
Current database:	jm
Current user:		root@localhost
SSL:			Not in use
Current pager:		stdout
Using outfile:		''
Using delimiter:	;
Server version:		5.7.33-log MySQL Community Server (GPL)
Protocol version:	10
Connection:		Localhost via UNIX socket
Server characterset:	latin1
Db     characterset:	latin1
Client characterset:	latin1
Conn.  characterset:	latin1
UNIX socket:		/var/run/mysqld/mysqld.sock
Uptime:			12 hours 20 min 48 sec

Threads: 2  Questions: 85  Slow queries: 83  Opens: 155  Flush tables: 1  Open tables: 148  Queries per second avg: 0.001
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