按orderno asc进行sql命令查询，同一客户在orderdate之后

Question

我正在使用此查询：

SELECT  c.Name
    ,   o.custid
    ,   o.orderno
    ,   o.orderdate
FROM orders o
INNER JOIN customers c ON o.custid = c.custid
ORDER BY Name, orderno, departmentid ASC, orderdate ASC

我希望获得相同的custid，orderdate asc。条件 order by name, orderno ,departmentid asc是强制性的。

示例：.....

    James 1 10101 110332 28081312 - time
    James 1 10101 110332 29081312  
    ....

Answer 1

SELECT  c.Name
    ,   o.custid
    ,   o.orderno
    ,   o.orderdate
FROM orders o
INNER JOIN customers c ON o.custid = c.custid
ORDER BY custid, orderdate

BY默认它是ASC，如果你想要Desending然后写DESC结束查询。

Answer 2

在查询结尾处使用分组依据。

GROUP BY o.custid