如何在sqlite中获取有序查询？

Question

我在测试表中插入了一些数据。

C:\>  sqlite3 e:\\test.db
sqlite> create table test(code TEXT,content  numeric);
sqlite> insert into test(code,content)values('x',3);
sqlite> insert into test(code,content)values('x',1.5);
sqlite> insert into test(code,content)values('x',1);
sqlite> insert into test(code,content)values('y',9);
sqlite> insert into test(code,content)values('y',3);
sqlite> insert into test(code,content)values('y',2);
sqlite> insert into test(code,content)values('y',12.3);
sqlite> insert into test(code,content)values('y',11.5);

我怎样才能得到如下的有序输出？
select * from test group by code order by content;无法得到它。 select * from test order by content;neither.

x|1
x|1.5
x|3
y|2
y|3
y|9
y|11.5
y|12.3

Answer 1

您可以按多个条件排序：

SELECT * FROM test ORDER BY code, content;