功能 | MYSQL风格 | PG风格 |
列出所有数据库 | show databases | \l |
切换数据库 | use database_name | \c database_name |
当前数据库的所有表 | show tables | \d |
查看表结构 | desc table_name | \d table_name |
显示所有索引 | show indexs | \di |
显示所有序列 | show sequences | \ds |
显示所有视图 | show views | \dv |
显示所有函数 | show functions | \df |
显示所有的表空间 | show tablespaces | \db |
显示所有schema | show schemas | \dn |
显示所有用户 | show users | \du |
显示表的权限分配 | show privileges | \dp |
下面两个功能未实现 | 有BUG别用 | |
显示所有触发器 | show trigs | 无 |
显示某函数定义 | show func name | \sf |
[shark@sharkdb=>bin]$./pgsql -d testdb
pgsql (17.1)
Type "help" for help.
SHARKSQL> select version();
+--------------------------------------------------------------------------+
| version |
+--------------------------------------------------------------------------+
| SharkDB 17.1 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 5.5.0, 64-bit |
+--------------------------------------------------------------------------+
(1 row)
Time: 22.574 ms
SHARKSQL>
显示所有的数据库
SHARKSQL> show databases
List of databases
+-----------+-------+----------+-----------------+------------+------------+--------+-----------+-------------------+
| Name | Owner | Encoding | Locale Provider | Collate | Ctype | Locale | ICU Rules | Access privileges |
+-----------+-------+----------+-----------------+------------+------------+--------+-----------+-------------------+
| sharkdb | shark | UTF8 | libc | zh_CN.utf8 | zh_CN.utf8 | | | |
| template0 | shark | UTF8 | libc | zh_CN.utf8 | zh_CN.utf8 | | | =c/shark +|
| | | | | | | | | shark=CTc/shark |
| template1 | shark | UTF8 | libc | zh_CN.utf8 | zh_CN.utf8 | | | =c/shark +|
| | | | | | | | | shark=CTc/shark |
| testdb | shark | UTF8 | libc | zh_CN.utf8 | zh_CN.utf8 | | | =Tc/shark +|
| | | | | | | | | shark=CTc/shark +|
| | | | | | | | | b_jar=c/shark |
+-----------+-------+----------+-----------------+------------+------------+--------+-----------+-------------------+
(4 rows)显示所有表
SHARKSQL> show tables
List of relations
+--------+--------------------+----------+-------+
| Schema | Name | Type | Owner |
+--------+--------------------+----------+-------+
| public | departments | table | shark |
| public | departments_id_seq | sequence | shark |
| public | employees | table | shark |
| public | employees_id_seq | sequence | shark |
| public | v_depemp | view | shark |
+--------+--------------------+----------+-------+
(5 rows)显示某个表的结构
SHARKSQL> desc departments
Table "public.departments"
+-----------------+------------------------+-----------+----------+-----------------------------------------+
| Column | Type | Collation | Nullable | Default |
+-----------------+------------------------+-----------+----------+-----------------------------------------+
| id | integer | | not null | nextval('departments_id_seq'::regclass) |
| department_name | character varying(100) | | not null | |
+-----------------+------------------------+-----------+----------+-----------------------------------------+
Indexes:
"departments_pkey" PRIMARY KEY, btree (id)
Referenced by:
TABLE "employees" CONSTRAINT "employees_department_id_fkey" FOREIGN KEY (department_id) REFERENCES departments(id)显示所有索引
SHARKSQL> show indexs
List of relations
+--------+------------------+-------+-------+-------------+
| Schema | Name | Type | Owner | Table |
+--------+------------------+-------+-------+-------------+
| public | departments_pkey | index | shark | departments |
| public | employees_pkey | index | shark | employees |
+--------+------------------+-------+-------+-------------+
(2 rows)显示所有序列
SHARKSQL> show sequences
List of relations
+--------+--------------------+----------+-------+
| Schema | Name | Type | Owner |
+--------+--------------------+----------+-------+
| public | departments_id_seq | sequence | shark |
| public | employees_id_seq | sequence | shark |
+--------+--------------------+----------+-------+
(2 rows)显示所有视图
SHARKSQL> show views
List of relations
+--------+----------+------+-------+
| Schema | Name | Type | Owner |
+--------+----------+------+-------+
| public | v_depemp | view | shark |
+--------+----------+------+-------+
(1 row)显示所有函数
SHARKSQL> show functions
List of functions
+--------+-------------+------------------+----------------------+------+
| Schema | Name | Result data type | Argument data types | Type |
+--------+-------------+------------------+----------------------+------+
| public | add_numbers | integer | a integer, b integer | func |
+--------+-------------+------------------+----------------------+------+
(1 row)显示所有的表空间
SHARKSQL> show tablespaces
List of tablespaces
+------------+-------+----------+
| Name | Owner | Location |
+------------+-------+----------+
| pg_default | shark | |
| pg_global | shark | |
+------------+-------+----------+
(2 rows)显示所有schema
SHARKSQL> show schemas
List of schemas
+--------+-------------------+
| Name | Owner |
+--------+-------------------+
| public | pg_database_owner |
+--------+-------------------+
(1 row)显示所有用户
SHARKSQL> show users
List of roles
+-----------+------------------------------------------------------------+
| Role name | Attributes |
+-----------+------------------------------------------------------------+
| b_jar | |
| shark | Superuser, Create role, Create DB, Replication, Bypass RLS |
+-----------+------------------------------------------------------------+显示所有权限
SHARKSQL> show privileges
Access privileges
+--------+--------------------+----------+-------------------+-------------------+----------+
| Schema | Name | Type | Access privileges | Column privileges | Policies |
+--------+--------------------+----------+-------------------+-------------------+----------+
| public | departments | table | | | |
| public | departments_id_seq | sequence | | | |
| public | employees | table | | | |
| public | employees_id_seq | sequence | | | |
| public | v_depemp | view | | | |
+--------+--------------------+----------+-------------------+-------------------+----------+
(5 rows)下载地址: 公众号的末尾
通过网盘分享的文件：pgsql17下载
