【发布时间】:2017-08-18 12:32:44
【问题描述】:
我正在尝试使用命令行界面在 linux 上学习 postgresql。
不久前我添加了一些数据库,遵循了一些教程(我已经忘记了我所学到的一切)。
现在我想删除这些数据库。
我假设我应该使用 psql(postgresql 的命令行界面)来执行此操作。
您可以在以下命令行输出中看到我尝试过的操作,但都没有成功。
psql (9.5.6)
Type "help" for help.
postgres=# \list
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 |
template0 | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
testdb | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 |
(4 rows)
postgres=# dropdb template1
postgres-# \list
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 |
template0 | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
testdb | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 |
(4 rows)
postgres-# DROP DATABASE template1
postgres-# \list
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 |
template0 | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
testdb | postgres | UTF8 | en_CA.UTF-8 | en_CA.UTF-8 |
(4 rows)
【问题讨论】:
-
不要删除模板数据库,read about them.
标签: linux database postgresql psql