If you are having issues dropping a postgres database the issue is more than likely that a user is accessing the database you are attempting to drop. There isn’t technically a way to force drop the po

服务启动：     1)#service postgresql start     2)#/etc/init.d/postgresql start     3)#su  postgresql        $ pg_ctl start PostgreSQL的进程号:1210、1207、 服务启动：     1)#service mysqld start     2)#/et

连接数据库, 默认的用户和数据库是postgres psql -U user -d dbname 切换数据库,相当于mysql的use dbname \c dbname 列举数据库，相当于mysql的show databases \l 列举表，相当于show tables \dt 查看表结构，相当于desc tblname,show columns from tbname \

1. Export data from MySQL $mysqldump -u root -p -c db_name table_name >table_name.sql