I have to write a query that pulls the users that are ten days away from ending their free trial. My question is, do i do a minus 10 day interval or a plus 10 day interval against CURRENT_DATE().
I am having difficulty thinking about this.
Here's my query:
SELECT * FROM users WHERE freetrial=1 AND date_format(date_created,'%Y-%m-%d 00:00:00') = CURRENT_DATE() - INTERVAL 10 DAY
If the trial period is 30 days long then you need to add 20 days to the date they registered and compare that to today's date.
SELECT *
FROM users
WHERE freetrial=1
AND FROM_UNIXTIME(date_created,'%Y-%m-%d') + INTERVAL 20 DAY = CURRENT_DATE()
Related
How to get mysql record older than 30 days? my code will get all the records even which are inserted two months ago .
WHERE date < DATE_SUB(NOW(), INTERVAL 1 MONTH)
I want only one month ago not bigger than one month
Put both start and end date in the filter.
WHERE date >= CURDATE() - INVERVAL 2 MONTH
AND date < CURDATE() - INTERVAL 1 MONTH
It's verbose and repetitive, but that's an affliction of all SQL code.
Calendar months? If you, on May 7th or anytime in May, want to ask for the calendar month of April, it would be this
WHERE date >= LAST_DAY(CURDATE()) + INTERVAL 1 DAY - INTERVAL 2 MONTH
AND date < LAST_DAY(CURDATE()) + INTERVAL 1 DAY - INTERVAL 1 MONTH
LAST_DAY('2021-05-07') gets you '2021-05-31',
+ INTERVAL 1 DAY then gets you '2021-06-01', then
- INTERVAL 2 MONTH finally gets you '2021-04-01'
It's easy to read and reason about.
CURDATE() gives today's date in place of the current date and time given by NOW(). Lots of historical reporting doesn't care about time of day, just calendar day. So it might be smart to use CURDATE(), depending on your application.
For example, if i have search string "2017-12-14" then i need to find all rows that matches 7-day range: "%-12-11", "%-12-12", "%-12-13", "%-12-14", "%-12-15", "%-12-16", "%-12-17".
Is it possible to do with MySql only?
To select same day cross years you can use following trick.
get the list of last 7 days/1 week NOW() - INTERVAL 1 WEEK
get the DAYOFYEAR of that days
search the database for all values of the same day in year
.
SELECT * FROM timevalues
WHERE DAYOFYEAR(timefield) IN (
SELECT DAYOFYEAR(timefield)
FROM timevalues
WHERE DATE(timefield) BETWEEN NOW() - INTERVAL 1 WEEK AND NOW()
)
;
Note: Leap year is not taken into calculation!
According to my brief investigation according to the leap year it would be easier to extend the SQL query with tolerance of 1 day, ie to use - INTERVAL 8 DAY instead of 7 and then control the validity of the day outside the database during processing the data in a loop.
Yes, it is possible.
The function you are looking for is +/- INTERVAL expr unit. See MySQL Date and Time Functions
So to get 7 days back use - INTERVAL 7 DAY:
SELECT *
FROM tablename
WHERE DATE(timefield) BETWEEN '2017-12-14' - INTERVAL 7 DAY AND '2017-12-14'
According to your example would be enough to use -INTERVAL 1 WEEK:
SELECT *
FROM tablename
WHERE DATE(timefield) BETWEEN '2017-12-14' - INTERVAL 1 WEEK AND '2017-12-14'
And List of all possible units
MICROSECOND SECOND MINUTE HOUR DAY WEEK MONTH QUARTER YEAR
SECOND_MICROSECOND MINUTE_MICROSECOND MINUTE_SECOND HOUR_MICROSECOND
HOUR_SECOND HOUR_MINUTE DAY_MICROSECOND DAY_SECOND DAY_MINUTE DAY_HOUR
YEAR_MONTH
Here is my problem, I want to fetch next 30 days records from the table. I have a field in my table. For ex: In my table I have resource_date, In this column I have many records from 2013-02-05 to 2015-10-10. Say, If I logged into the website today(Today's Date is- 16/01/2015, It should fetch record for next 15 days and so on). How to do this? Thanks in advance
One way to do it
SELECT *
FROM table1
WHERE resource_date >= CURDATE() + INTERVAL 1 DAY -- skip today
AND resource_date < CURDATE() + INTERVAL 17 DAY -- 15 days starting tomorrow
Here is a SQLFiddle demo
In MySQL, you can use the NOW() function to get the current DATETIME, and the INTERVAL keyword to get intervals of time.
So, to get the records where resource_date is within the next 30 days, you would use:
SELECT *
FROM `my_table_name`
WHERE `resource_date` >= NOW()
AND `resource_date` < NOW() + INTERVAL 1 MONTH
;
In practice, you should rarely use SELECT *, and you should consider adding a LIMIT to this query to prevent your application from returning a result set that is "too large".
http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html
...
WHERE
'resource_date'> NOW() AND
'resource_date'< DATE_ADD(NOW(), INTERVAL 31 DAY);
Careful I think now() does minutes and hours so you miss a portion of a day.
WHERE resource_date >= CURDATE() AND resource_date <= DATE_ADD(CURDATE(), interval 15 DAY)
Why this query is not working
SELECT * FROM history WHERE DATE(date) < CURDATE() + 30
I am trying to get the data from 30 days but my query is not working.Why
What does +30 mean? Days? Years? Months? Hours? You need to use (the proper syntax) a format MySQL understands:
SELECT * FROM history WHERE DATE(date) < CURDATE() + INTERVAL 30 DAY
To get the data from today on to 30 days after current day, you've got to set an upper and an lower limit, so use:
SELECT * FROM history WHERE
date >= CURDATE()
AND
date < CURDATE() + INTERVAL 31 DAY
Please note that by not using a function on your date column you won't prohibit MySQL to use an index on this column.
The lower limit should be obvious, the upper limit means that you've got the complete day that's 30 days later than today. If you use + INTERVAL 30 DAY instead this last day is excluded from the result.
Because you're not using the right construct, try:
SELECT * FROM history WHERE DATE_ADD(date, INTERVAL 30 DAY);
I have a cricket schedule and i need to select the matches of the current day just half an hour before the match starts and the selection should last until the 2 hours past the end of the match , this should be done in a single query i have used the following query but it is not working accurately...
SELECT * FROM `schedule` WHERE
date1 BETWEEN DATE_SUB(NOW(), INTERVAL 30 MInute)
AND DATE_ADD(NOW(), INTERVAL 10 HOUR)
If you want to display all scheduled matches from half an hour before they start until 2 hours after they end, and all mathces have a duration of 12 hours, then you need to show all matches within a 14,5 hours interval, and not a 10,5 hours interval as your current code does:
SELECT * FROM `schedule`
WHERE NOW() BETWEEN DATE_SUB(date1, INTERVAL 30 Minute)
AND DATE_ADD(date1, INTERVAL 14 HOUR)
Furthermore, you should compare the current time (NOW()) to the start time and end time of the game, not the other way round.