命令格式:
切换数据库:\c [database_name]
切换用户:\c - [user_name]
$su - postgres
Last login: Wed Mar 1 13:16:48 CST 2017 on pts/1
-bash-4.2$psql
psql (9.2.18)
Type "help" for help.
postgres=#
切换数据库
postgres=# \c zzj_db;
You are Now connected to database "zzj_db" as user "postgres".
zzj_db=#
切换用户
zzj_db=# \c - zzj_user;
Password for user zzj_user:
Youare Now connected to database "zzj_db" as user "zzj_user".
zzj_db=>