Question

This is my SQLite Database Table :

+----+-----------+----------+
| ID | StartTime | EndTime  |
+----+-----------+----------+
|  1 | 07:00:01  | 23:00:00 |
|  2 | 23:00:01  | 07:00:00 |
+----+-----------+----------+

Now I am having problem creating sql query to select them.

• Time1=’14:00:00′

I used

SELECT * FROM 'table' 
WHERE StartTime <= '14:00:00'
AND EndTime >= '14:00:00';

Result for selecting Time1 returned is correct, I got what I want.

But

• Time2=’07:00:00′
• Time3=’06:00:00′

For Time2 and Time3, I can’t seems to determine what should be the SELECT statement conditions?

QUESTION

What should be the algorithm and SQLite statements to handle such situation, i.e. when it’s Time1, only ID 1 is returned, when Time2 and Time3, only ID 2 is returned?

I am using Java to execute SQLite statements, therefore I am not sure if all the functions are supported.

Answer 1

Here is an example query (SQLFiddle):

select * from t where 
(
(StartTime<=EndTime) and 
 ('07:00:00' between StartTime and EndTime)
)
 or
(
(StartTime>EndTime) and 
 ( 
    ('07:00:00' between StartTime and '23:59:59')
     or
    ('07:00:00' between '00:00:00' and EndTime)

 )
);