I need some help with SQL Query.
I am trying to select all records from table test_table
which would not fit between two dates '2009-12-15' and '2010-01-02'.
This is my table structure:
`start_date` date NOT NULL default '0000-00-00',
`end_date` date NOT NULL default '0000-00-00'
-----------------------------
**The following record should not be selected:**
`start_date`, `end_date`
'2003-06-04', '2010-01-01'
My query:
SELECT *
FROM `test_table`
WHERE
CAST('2009-12-15' AS DATE) NOT BETWEEN start_date and end_date
AND
CAST('2010-01-02' AS DATE) NOT BETWEEN start_date and end_date
Any idea why my query select wrong records? Should I change the order of values in query to something like:
start_date NOT BETWEEN CAST('2009-1开发者_如何学C2-15' AS DATE) and CAST('2010-01-02' AS DATE)
Thanks a lot for any help
How about trying:
select * from 'test_table'
where end_date < CAST('2009-12-15' AS DATE)
or start_date > CAST('2010-01-02' AS DATE)
which will return all date ranges which do not overlap your date range at all.
Your logic is backwards.
SELECT
*
FROM
`test_table`
WHERE
start_date NOT BETWEEN CAST('2009-12-15' AS DATE) and CAST('2010-01-02' AS DATE)
AND end_date NOT BETWEEN CAST('2009-12-15' AS DATE) and CAST('2010-01-02' AS DATE)
Do you mean that the date range of the selected rows should not lie fully within the specified date range? In which case:
select *
from test_table
where start_date < date '2009-12-15'
or end_date > date '2010-01-02';
(Syntax above is for Oracle, yours may differ slightly).
If the 'NOT' is put before the start_date it should work. For some reason (I don't know why) when 'NOT' is put before 'BETWEEN' it seems to return everything.
NOT (start_date BETWEEN CAST('2009-12-15' AS DATE) AND CAST('2010-01-02' AS DATE))
What you are currently doing is checking whether neither the start_date nor the end_date fall within the range of the dates given.
I guess what you are really looking for is a record which does not fit in the date range given. If so, use the query below.
SELECT *
FROM `test_table`
WHERE CAST('2009-12-15' AS DATE) > start_date AND CAST('2010-01-02' AS DATE) < end_date
Assuming that start_date is before end_date,
interval [start_date..end_date] NOT BETWEEN two dates simply means that either it starts before 2009-12-15 or it ends after 2010-01-02.
Then you can simply do
start_date<CAST('2009-12-15' AS DATE) or end_date>CAST('2010-01-02' AS DATE)
For there to be an overlap the table's start_date has to be LESS THAN the interval end date (i.e. it has to start before the end of the interval) AND the table's end_date has to be GREATER THAN the interval start date. You may need to use <= and >= depending on your requirements.
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