建库
postgres=# \l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
db_utf8 | gao | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 |
postgres | postgres | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 |
template0 | postgres | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(4 rows)
postgres=#
建表
postgres=# \d
List of relations
Schema | Name | Type | Owner
--------+-------------------+-------+----------
public | gao_chinese_order | table | postgres
public | tbl_chinese_order | table | postgres
(2 rows)
postgres=#
insert into tbl_chinese_order values ('***');
insert into tbl_chinese_order values ('*德华');
insert into tbl_chinese_order values ('张学友');
普通排序
postgres=# select * from tbl_chinese_order order by info;
info
--------
***
*德华
张学友
(3 rows)
postgres=# select * from tbl_chinese_order order by convert_to(info,'SQL_ASCII');
info
--------
***
*德华
张学友
(3 rows)
postgres=#
按拼音排序:
postgres=# select * from tbl_chinese_order order by convert_to(info,'GBK');
info
--------
*德华
***
张学友
(3 rows)
postgres=#
postgres=# select * from tbl_chinese_order order by convert_to(info,'GB18030');
info
--------
*德华
***
张学友
(3 rows)
postgres=#