SQL命令查询订购日期

Question

我使用此查询后：

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 

我想获得相同custid的orderdate asc。条件 order by name, orderno ,departmentid asc是强制性的。

例如：.....

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

Answer 1

使用组，通过在查询的结尾条款。

GROUP BY o.custid

Answer 2

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 

默认情况下它是ASC，如果你想Desending然后写查询DESC结束。