I'm trying to get all rows from DATE column
values from 10 days ago till today
i'm trying to undesrtand why this syntax isn't working:
select * from table WHERE date BETWEEN NOW() AND NOW() - INTERVAL 10 DAY ORDER BY date
You have to start with the lower value when using between
select *
from table
WHERE date BETWEEN NOW() - INTERVAL 10 DAY and NOW()
ORDER BY date
The problem is not related to the NOW() function but to the BETWEEN operator, the lower timestamp has to be specified first:
where date between now() - interval 10 day and now()
however, depending on your requirements, you might want to use this:
where date between current_date() - interval 10 day and current_date()
or just
where date>=current_date() - interval 10 day
now() returns a timestamp that contains date and time information, while current_date() returns just the current date without time information. If date is just a date column, without time information, using now() - interval 10 day you will get just the latest 9 days and not the latest 10 as you might expect.
Related
I need some help with some a simple query. I want to select data from a table where the date is in this week, but I don't want the records where the date is today. So if today is Monday, then I only want the data from Tuesday to Friday.
This was my best attempt.
SELECT *
FROM data
WHERE date > DATE_SUB(NOW(), INTERVAL 1 WEEK)
How can I improve this?
You can use between and subdate
SELECT * FROM `data` WHERE `date`
BETWEEN SUBDATE(CURDATE(), 7) AND SUBDATE(CURDATE(), 1);
You want to use CURDATE()
The CURDATE() function returns the current date.
Note: This function returns the current date as a "YYYY-MM-DD" format
if used in a string context, and as a YYYYMMDD format if used in a
numeric context.
And DATE()
The DATE() function extracts the date value from a date or datetime
expression.
SELECT * FROM data WHERE date > DATE_SUB(NOW(), INTERVAL 1 WEEK) AND DATE(date) < CURDATE();
This will effectively turn your data into YYYY-MM-DD and compare with today's YYYY-MM-DD
You can use between here and go one day back from today.
SELECT * FROM data WHERE date BETWEEN DATE_SUB(NOW(), INTERVAL 1 WEEK) AND DATE_SUB(CURDATE(), INTERVAL 1 DAY)
Be aware that I have used CURDATE() instead of NOW() as curdate does only contain the date without time.
I am in a situation where i need to query data base to fetch records from yesterday with time stamp, for an example today is 25 so clause should be like:
STR_TO_DATE(created_date,'%Y-%m-%d') BETWEEN '2016-04-24 23:00:00' AND CURRENT_TIMESTAMP
I can get the previous date, but can't set it to 23:00:00 time, any idea's please?
I have tried:
SELECT
DATE_ADD(CURDATE(), INTERVAL - 1 DAY)
, CURRENT_TIMESTAMP
, HOUR(CURRENT_TIMESTAMP)
, DATE_ADD(
CURDATE() INTERVAL - ((HOUR(CURRENT_TIMESTAMP) + 1)) HOUR
)
But it gives an error, i tried to subtract the todays HOURS +1 from current timestamp.
Use
curdate() - interval 1 hour
Since curdate() gives you the current date WITHOUT time. Substract an hour from it and you get yesterday 23:00.
I have this query
SELECT * FROM `timeclock_timecard`
WHERE `clock_in_datetime` > DATE_SUB(CURDATE(), INTERVAL 1 DAY)
which can get record in the last day but I need to limit to records created after 7AM
Any help please?
SELECT * FROM `timeclock_timecard`
WHERE `clock_in_datetime` > DATE_SUB(CURDATE(), INTERVAL 1 DAY)
and hour(`clock_in_datetime`) > 7;
Added one more filter condition to check for the hour.
Your query was almost correct, because CURDATE() only gives the date you can just subtract 17 hours to get the correct result. fiddle.
SELECT * FROM `timeclock_timecard`
WHERE `clock_in_datetime` >= DATE_SUB(CURDATE(), INTERVAL 17 HOUR)
To get the entries of the current day, we can add 7 hours (CURDATE() has time 0:00).
SELECT * FROM `timeclock_timecard`
WHERE `clock_in_datetime` >= DATE_ADD(CURDATE(), INTERVAL 7 HOUR)
To get only rows from yesterday, with a time value of 7AM or later, we can add 7 hours to the expression.
If we only up until midnight of today (just rows from yesterday), we can add another condition, the datetime is less than midnight today.
For example:
SELECT t.*
FROM `timeclock_timecard` t
WHERE t.`clock_in_datetime` >= DATE(NOW()) + INTERVAL -1 DAY + INTERVAL 7 HOUR
AND t.`clock_in_datetime` < DATE(NOW())
If you want to exclude the exact 7:00:00 AM value, change the >= to just >.
FOLLOWUP
Q: What I actually want is between about 5-6am TODAY and mindnight TODAY so anytime during today that I run the report for today I will get only timeclock data from users who clocked in/out today only and not include yesterdays data.
A: The predicates are going to be of the form
WHERE t.`clock_in_datetime` >= expr1
AND t.`clock_in_datetime` < expr2
You just need to find the expressions expr1 and expr2 that return the appropriate datetime values.
Just use a simple SELECT statement to test:
SELECT DATE(NOW()) + INTERVAL 5 HOUR AS `start`
, DATE(NOW()) + INTERVAL 1 DAY AS `end`
Q: I also modified my select to take in account my datetime is in UTC and my result needs to get todays records using local timezone.
SELECT * , CONVERT_TZ( clock_in_datetime , '+00:00', '-4:00' ) FROM `timeclock_timecard`
A: Personally, I would do the timezone conversion on the exprN values, not the column values. Having predicates on bare columns allows MySQL to make effective use of an index; wrapping the columns in expressions prevents MySQL from using an index.
If the MySQL system clock is UTC, and your datetime values stored in the table are in a different timezone, yes, use the MySQL CONVERT_TZ function.
Again, using a simple SELECT statement to develop and test the expressions:
SELECT CONVERT_TZ( DATE(NOW()) + INTERVAL 5 HOUR, '+0:00', to_tz) AS `start`
, CONVERT_TZ( DATE(NOW()) + INTERVAL 1 DAY , '+0:00', to_tz) AS `end`
Where to_tz is the timezone of the values in the table.
Once you get expressions start and end returning the values you need, then use those expressions in the predicates of the query of the timecard table.
Is there a way in a MySQL statement to order records (through a date stamp) by >= NOW() -1 so all records from the day before today to the future are selected?
Judging by the documentation for date/time functions, you should be able to do something like:
SELECT * FROM FOO
WHERE MY_DATE_FIELD >= NOW() - INTERVAL 1 DAY
Be aware that the result may be slightly different than you expect.
NOW() returns a DATETIME.
And INTERVAL works as named, e.g. INTERVAL 1 DAY = 24 hours.
So if your script is cron'd to run at 03:00, it will miss the first three hours of records from the 'oldest' day.
To get the whole day use CURDATE() - INTERVAL 1 DAY. This will get back to the beginning of the previous day regardless of when the script is run.
Didn't see any answers correctly using DATE_ADD or DATE_SUB:
Subtract 1 day from NOW()
...WHERE DATE_FIELD >= DATE_SUB(NOW(), INTERVAL 1 DAY)
Add 1 day from NOW()
...WHERE DATE_FIELD >= DATE_ADD(NOW(), INTERVAL 1 DAY)
You're almost there: it's NOW() - INTERVAL 1 DAY
Sure you can:
SELECT * FROM table
WHERE DateStamp > DATE_ADD(NOW(), INTERVAL -1 DAY)
when search field is timestamp and you want find records from 0 hours yesterday and 0 hour today use construction
MY_DATE_TIME_FIELD between makedate(year(now()), date_format(now(),'%j')-1) and makedate(year(now()), date_format(now(),'%j'))
instead
now() - interval 1 day
I am having dates in my database.
My database is in MySQL.
I want to fetch dates from my database which provides me dates from last monday till current day.
How can I do that?
You first have to work out how many days ago last monday was, using the DAYOFWEEK function, then subtract that from the current date -
SELECT * from table
WHERE date >= DATE_SUB(CURDATE(),INTERVAL MOD(DAYOFWEEK(CURDATE())-2,7) DAY)
AND date <= DATE_ADD(CURDATE(), INTERVAL MOD(7 - (DAYOFWEEK(CURDATE()) - 1), 7) DAY)
I'm not 100% sure about the +/- numbers here, you should be able to work it out from this though
EDIT: If this will only ever be run on the sunday at the end of the period, there is a much simpler version -
SELECT * from table
WHERE date >= DATE_SUB(CURDATE(), INTERVAL 6 DAY)
AND date <= CURDATE()
try this one
select * from table
WHERE date >date_sub(curdate(), interval WEEKDAY(curdate()) day) ;
You could always use the between function in your queries...
SELECT *
FROM orders
WHERE order_date between to_date ('2003/01/01', 'yyyy/mm/dd')
AND to_date ('2003/12/31', 'yyyy/mm/dd');
http://www.techonthenet.com/sql/between.php