0. 进入环境

su - omm
gsql -r

1.创建一个名为tpcds的模式

CREATE SCHEMA tpcds;

\dn+ tpcds;

– 回显

                 List of schemas
 Name  | Owner | Access privileges | Description 
-------+-------+-------------------+-------------
 tpcds | omm   |                   | 
(1 row)

2.创建一个用户tim, 并将tpcds的owner修改为tim，且修改owner前后分别使用\dn+查看模式信息

CREATE USER tim PASSWORD 'abcd@123';
\du

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NOTICE:  The encrypted password contains MD5 ciphertext, which is not secure.
CREATE ROLE
                                                             List of roles
 Role name |    Attributes                | Member of 
-----------+-------------------------------+-----------
 gaussdb   | Sysadmin                       | {}
 omm       | Sysadmin, Create role, Create DB, Replication, Administer audit, Monitoradmin, Operat
oradmin, Policyadmin, UseFT | {}
 tim       |                                      | {}

ALTER SCHEMA tpcds OWNER TO tim;
\dn+ tpcds;

– 回显

                 List of schemas
 Name  | Owner | Access privileges | Description 
-------+-------+-------------------+-------------
 tpcds | tim   |                   | 
(1 row)

3.重命名tpcds为tpcds1

ALTER SCHEMA tpcds RENAME TO tpcds1;

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ALTER SCHEMA

4.在模式tpcds1中建表customer、插入记录和查询记录

create table tpcds1.customer(id int, name char(30));
insert into tpcds1.customer values(1 ,'xxxx');
select * from tpcds1.customer;

 id |              name              
----+--------------------------------
  1 | xxxx                          
(1 row)

\d+ tpcds1.customer;

                          Table "tpcds1.customer"
 Column |     Type      | Modifiers | Storage  | Stats target | Description 
--------+---------------+-----------+----------+--------------+-------------
 id     | integer       |           | plain    |              | 
 name   | character(30) |           | extended |              | 
Has OIDs: no
Options: orientation=row, compression=no

5.删除模式tpcds1

DROP SCHEMA tpcds1 CASCADE;
DROP USER tim;

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DROP SCHEMA
DROP ROLE

最后验证观察下

\dn+ tpcds1

– 回显

                List of schemas
 Name | Owner | Access privileges | Description 
------+-------+-------------------+-------------
(0 rows)

\du+ tim

– 回显

                  List of roles
 Role name | Attributes | Member of | Description 
-----------+------------+-----------+-------------