I have a table like
------------------------------
id | created_date | duration
------------------------------
duration is no.of days, now I want to select records that are created_date(timestamp)+duration(integer) > current time
I tried this in my where clause
"select * from table where (created_date + duration days) > now()"
now resultset is empty, I have records that should come out for my requirement, I suspect my query is not right, help me get it right.
Very close. I would do this as:
select *
from table
where created_date > now() - duration * interval '1 day'
Related
I use MariaDB and have a table where each row has a date and a score.
I want to first show the rows where the date is 3 days old or newer, sorted by the score - then show the rest (more than 3 days old) sorted by date.
Since my date is stored in unix time, it's fairly easy to have php calculate 3 days from before now and use that as my $scoreTimeLimit variable in the below:
Here are my two queries:
SELECT * FROM myTable WHERE myDate > $scoreTimeLimit ORDER BY myPopularityScore DESC
SELECT * FROM myTable WHERE myDate < $scoreTimeLimit ORDER BY myDate DESC
However, I would VERY much like to have only 1 query instead of two. Can it be done...?
This is a job for UNION.
SELECT * FROM (
SELECT 0 ord1, NOW() as ord2, *
FROM myTable WHERE myDate > NOW() - INTERVAL 3 DAY
UNION ALL
SELECT 1 ord1, myDate as ord2, *
FROM myTable WHERE myDate <= NOW() - INTERVAL 3 DAY
) a
ORDER BY ord1, ord2 DESC, myPopularityScore
The inner query gives you a single result set with a couple of extra columns added on to help you manage your sorting.
I have a mysql table with the following fields
Name | Email | Date | Status
I want to extract the records where date range is between 30 days
Assume today is 2014/12/9
ie. date values are
2014/11/25
2014/12/2
2014/12/1
2014/10/25
2014/11/9
I need the o/p as (the number of days should be with in 30 days from the db date to today date)
2014/11/25
2014/12/2
2014/12/1
2014/11/9
I want to extract records those have the interval of less than 30 days from the date in the db.
Yes. I want to fetch the record between 2 days. For this I used this query
SELECT * FROM tbl_jobboard WHERE dtDate <= ( dtDate +30 )
But it is not working.
How to write the select query?
USE DATE_SUB like this:
SELECT * FROM table1
WHERE `date` BETWEEN DATE_SUB(CURDATE(),INTERVAL 30 DAY) AND CURDATE()
Working Fiddle Demo: http://sqlfiddle.com/#!2/6344f2/1
use following query
select * from table_Name t where t.date<=now() and t.date>=DATE_SUB(now(),
INTERVAL 31 DAY)
I'm sorry if this sounds like a very basic question but for some reason, today I'm really having trouble getting my head round this. I have a database table with a date_added column in the format of 2014-09-30 20:39:17 and I have a web page with filter options for users. Basically I want to use variables to select different date ranges like so:
SELECT * FROM table WHERE date_added = /* EVERYTHING POSTED TODAY */
SELECT * FROM table WHERE date_added = /* EVERYTHING POSTED WITHIN LAST 7 DAYS */
SELECT * FROM table WHERE date_added = /* EVERYTHING POSTED WITHIN LAST 30 DAYS */
What would I need to put in to get those variables to work?
You can use CURDATE() and very simple INTERVAL arithmetic.
In the following examples assume that query was executed at 2014-10-21 22:25:28:
SELECT * FROM table WHERE date_added >= CURDATE()
-- >= 2014-10-21 00:00:00
SELECT * FROM table WHERE date_added >= NOW() - INTERVAL 24 HOUR
-- >= 2014-10-20 22:25:28
SELECT * FROM table WHERE date_added >= CURDATE() - INTERVAL 7 DAY
-- >= 2014-10-14
SELECT * FROM table WHERE date_added >= CURDATE() - INTERVAL 30 DAY
-- >= 2014-09-21
I have fee records in my database table. I want to fetch 3 months back records of the fees in database. I am using:
SELECT * FROM fee_challans
WHERE student_id = 630
AND STATUS = 'un-paid'
AND DATE_FORMAT( fee_date, '%Y-%m-%d' ) - INTERVAL 2 MONTH
This query that I searched and found on google.
You forgot to compare your column to something...
SELECT * FROM fee_challans
WHERE student_id = 630
AND STATUS = 'un-paid'
AND fee_date >= CURDATE() - INTERVAL 3 MONTH;
And if your fee_date column is of type date, datetime or timestamp, date_format() is not necessary.
I have a table like this
id | date | content
1 | 09-16-2013 | content 1 here
2 | 09-23-2013 | content 2 here
3 | 09-30-2013 | content 3 here
I would like to display the content for a week from that date. For example, the first content should start on 9/16/2013 and then show until 9/22/2013 mid night. then on next day, it changes to the content 2.
Same way,when I am on content 2, I want to display like "previous week content" and then show just the previous ones..I think I can do this by checking the current date and then anything below that has to be displayed.
I am not very good at these kind of mysql queries, please advise!
Regards
I guess you're looking for something like this
SELECT *
FROM table1
WHERE date BETWEEN CURDATE() + INTERVAL 0 - WEEKDAY(CURDATE()) DAY
AND CURDATE() + INTERVAL 6 - WEEKDAY(CURDATE()) DAY
This query will grab a row(s) where date column is within the boundaries of the current calendar week (from Monday to Sunday).
WEEKDAY() function returns the weekday index for date (0 = Monday, 1 = Tuesday, … 6 = Sunday). The expression
CURDATE() + INTERVAL 0 - WEEKDAY(CURDATE()) DAY
returns a date for Monday of the current calendar week and
CURDATE() + INTERVAL 6 - WEEKDAY(CURDATE()) DAY
returns a date for Sunday of the current calendar week.
Using BETWEEN in WHERE clause makes sure that a query returns only rows with date values that falls between these two dates (Monday through Sunday).
Note: Make sure that you have an index on date column. This query is index-friendly.
Sample output for today's date (09/19/2013):
+------+------------+----------------+
| id | date | content |
+------+------------+----------------+
| 1 | 2013-09-16 | content 1 here |
+------+------------+----------------+
UPDATE: To get records for previous calendar week you just substract 1 week interval from both values in BETWEEN
SELECT *
FROM table1
WHERE date
BETWEEN CURDATE() + INTERVAL 0 - WEEKDAY(CURDATE()) DAY - INTERVAL 1 WEEK,
AND CURDATE() + INTERVAL 6 - WEEKDAY(CURDATE()) DAY - INTERVAL 1 WEEK
Try this
SELECT * FROM table WHERE date BETWEEN '09-16-2013' AND '09-22-2013';
keyword is WEEK()
SELECT id,date, CONCAT('content ',WEEK(date),' to here') as content FROM table_name
SELECT *
FROM table
WHERE date BETWEEN '9/16/2013 00:00:00.00' AND '9/22/2013 00:00:00.00'
You can replace the week offset to your needs
SET #weekOffset = +2;
SELECT * FROM test
WHERE WEEK(`date`) = WEEK(NOW()) + #weekOffset;
See a working demo here
To select it dynamically, try something like
SELECT * FROM `yourTable` WHERE NOW() >= STR_TO_DATE(`date`, '%m-%d-%Y') ORDER BY STR_TO_DATE(`date`, '%m-%d-%Y') DESC LIMIT 1
or t
SELECT * FROM `yourTable` WHERE CURDATE() >= STR_TO_DATE(`date`, '%m-%d-%Y') ORDER BY STR_TO_DATE(`date`, '%m-%d-%Y') DESC LIMIT 1
sqlfiddle example - http://sqlfiddle.com/#!2/62982/4