SQL 排序有关问题

SQL 排序问题
在开发过程中有如下排序问题，还请高手帮忙解决。
有如下数据：
A
B
C
A,B
A,B,C
A,B,C,E
A,B,C,F
A,B,E,F
A,B,F
A,B,F,N
A,B,F,Y
A,C
A,C,E
A,C,F
A,E
A,E,F
A,F
A,F,G
A,N
B,C
B,C,E
B,E
B,F
B,G
B,N
B,P
C,E
C,F
C,N
E,G
E,G,N
F,G
F,N
N,P,Q
N,Q

排序规则如下：
先排(A),然后(B)，再出(A,B)，(C)，(A,B,C)，(A,C)……



[解决办法]

SQL code

-- 创建测试数据临时表create table #t (name varchar(50));-- 插入测试数据insert into #t select 'A'union all select 'B'union all select 'C'union all select 'A,B'union all select 'A,B,C'union all select 'A,B,C,E'union all select 'A,B,C,F'union all select 'A,B,E,F'union all select 'A,B,F'union all select 'A,B,F,N'union all select 'A,B,F,Y'union all select 'A,C'union all select 'A,C,E'union all select 'A,C,F'union all select 'A,E'union all select 'A,E,F'union all select 'A,F'union all select 'A,F,G'union all select 'A,N'union all select 'B,C'union all select 'B,C,E'union all select 'B,E'union all select 'B,F'union all select 'B,G'union all select 'B,N'union all select 'B,P'union all select 'C,E'union all select 'C,F'union all select 'C,N'union all select 'E,G'union all select 'E,G,N'union all select 'F,G'union all select 'F,N'union all select 'N,P,Q'union all select 'N,Q';-- 查询数据，按ascii码排序--(注意这里是假设每个name里的字母都是按从小到大的顺序排好序的)select * from #t order by REVERSE(name);