Question

这是我的MySQL查询。

SELECT Timestamp,a_number,Verdict,OrderId 
FROM Main 
WHERE Timestamp between DATE '2014-03-12' AND '2014-03-11' 
and a_location like '%london%';

在上面的查询中，Timestamp是Main表中的一个字段。但是当我执行查询时，它正在执行并将输出作为空集。

当我检查存储在数据库中的Timestamp值时，我得到下面给出的值

1323517427743,1323867674980。

我做错了什么。我应该做些什么来改变我的需要。

Answer 1

col BETWEEN a AND b是col >= a AND col <= n以上的语法糖 - 也就是说，您必须使用正确的顺序：

SELECT Timestamp,a_number,Verdict,OrderId 
FROM   Main 
WHERE  Timestamp between DATE '2014-03-11' AND '2014-03-12' 
AND    a_location like '%london%';

Answer 2

尝试在DATE列周围使用后退标记

SELECT Timestamp,a_number,Verdict,OrderId 
FROM Main 
WHERE Timestamp between `DATE` '2014-03-12' AND '2014-03-11' 
and a_location like '%london%';

Answer 3

如果Timestamp的列类型为timestamp，那么您可以这样做：

SELECT `Timestamp`, a_number,Verdict,OrderId 
FROM Main 
WHERE `Timestamp` between '2014-03-11' AND '2014-03-12' 
and a_location like '%london%';

如果是整数，那么你应该这样做：

SELECT `Timestamp`, a_number,Verdict,OrderId 
FROM Main 
WHERE `Timestamp` between UNIX_TIMESTAMP('2014-03-11') AND UNIX_TIMESTAMP('2014-03-12') 
and a_location like '%london%';

对于between A and B，A应小于或等于B，否则不会返回任何结果。

无法在MySQL中使用日期与子句之间

3 个答案: