Sql 甲骨文按字母顺序排序上A，下A，数字

我使用Oracle版本12和以下NLS参数进行排序

• NLS_语言美语
• NLS_排序二进制文件
• NLS_COMP二进制文件

例如，“安迪”、“安迪”、“安迪”、“安迪”、“亚伦”、“鲍勃”

按姓名从员工订单中选择姓名

结果: “Andy”、“Andy”、“Aaron”、“Andy”、“Bob”、“Andy”

如果我将NLS_排序更改为WEST_EUROPEAN，则应为“1安迪”、“安迪”、“艾伦”、“安迪”、“安迪”、“鲍勃” 但结果是“1安迪”、“安迪”、“安迪”、“艾伦”、“安迪”、“鲍勃” 安迪即使是小写也在中间。

按NLSSORT从员工订单中选择姓名（姓名，'NLS_SORT=WEST_EUROPEAN'）

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首先，您可以通过在排序规则规范：west\u european\u ci中添加_ci来实现不区分大小写的排序。也就是说，在西欧排序规范中，数字排在字母后面。以下是我使用不同的排序规则规范获得的数据

SQL> with dt as (
  2  select ' 1Andy' cv from dual
  3  union all
  4  select ' Andy' from dual
  5  union all
  6  select '1Andy' from dual
  7  union all
  8  select 'Andy' from dual
  9  union all
 10  select 'andy' from dual
 11  union all
 12  select 'Aaron' from dual
 13  union all
 14  select 'Bob' from dual)
 15  select *
 16  from dt
 17  order by cv;

CV    
------
 1Andy
 Andy
1Andy
Aaron
Andy
Bob
andy

7 rows selected. 

SQL> 
SQL> with dt as (
  2  select ' 1Andy' cv from dual
  3  union all
  4  select ' Andy' from dual
  5  union all
  6  select '1Andy' from dual
  7  union all
  8  select 'Andy' from dual
  9  union all
 10  select 'andy' from dual
 11  union all
 12  select 'Aaron' from dual
 13  union all
 14  select 'Bob' from dual)
 15  select *
 16  from dt
 17  order by nlssort(cv,'NLS_SORT=WEST_EUROPEAN');

CV    
------
 Andy
 1Andy
Aaron
Andy
andy
Bob
1Andy

7 rows selected. 

SQL> 
SQL> with dt as (
  2  select ' 1Andy' cv from dual
  3  union all
  4  select ' Andy' from dual
  5  union all
  6  select '1Andy' from dual
  7  union all
  8  select 'Andy' from dual
  9  union all
 10  select 'andy' from dual
 11  union all
 12  select 'Aaron' from dual
 13  union all
 14  select 'Bob' from dual)
 15  select *
 16  from dt
 17  order by nlssort(cv,'NLS_SORT=WEST_EUROPEAN_ci');

CV    
------
 Andy
 1Andy
Aaron
Andy
andy
Bob
1Andy

7 rows selected.