I'm trying to request my database to get numbers of rows where a specific login appears from last 6 months ordered by weeks.
The output has to be something like this :
My request is like this :
SELECT count(*) FROM table1 where (`EndDate` BETWEEN DATE_SUB(CURDATE(), INTERVAL 6 MONTH) and CURDATE()) AND the_login LIKE 'LOGIN 1';
It shows every rows from last 6 month for now.
Could you complete my request or change it if needed please ?
You can use YEAR() and WEEK() to extract them from the date, and group by them .
Note that I didn't use only WEEK because its not enough, if you'll perform this before June, weeks can be misunderstood.
Also, don't use LIKE for exact match, use them only for partially comparison.
SELECT YEAR(t.endDate) as m_Year, WEEK(t.endDate) as m_Week, count(*)
FROM table1 t
where t.`EndDate` BETWEEN DATE_SUB(CURDATE(), INTERVAL 6 MONTH)
and CURDATE())
AND t.the_login = 'LOGIN 1'
GROUP BY m_Year,m_Week
Related
How can I query the total number of status per type of the current month and also query the total number of status of the future months to come. Both are separate queries. I looked up on the google but I had a hard time applying it.
I am using mysql.
my field names are
date status
format YYYY/MM/DD PENDING, ACCEPTED, REJECTED
I tried to use but get an error of SQL syntax
SELECT * FROM request WHERE (MONTH(date) = MONTH(GETDATE());
To get the statuses of the current month:
SELECT
status
COUNT(*)
FROM request
WHERE
MONTH(date) = MONTH(NOW())
GROUP BY status
To get next month's I would use:
SELECT
status,
COUNT(*)
FROM request
WHERE
MONTH(date) = MONTH(DATE_ADD(LAST_DAY(NOW()), INTERVAL 1 DAY))
GROUP BY status
We take the last day of the current month and add 1. Just to avoid using things like MONTH(NOW())+1 or DATE_ADD(NOW(), INTERVAL 30 DAY)
GETDATE() is a SQL Server function. Perhaps it will work with the MySQL function:
SELECT r.*
FROM request r
WHERE MONTH(date) = MONTH(now());
If this works, realize that it only refers to the calendar month in any year. It is not necessarily the current month.
I am trying to run a query and get all the records where today is 6 months after the start date.
Here is what I have but it doesn't seem to be working. What am I missing?
select * from users where DATE_ADD(start_date, INTERVAL 1 MONTH) = CURDATE()
Thanks!
This is too long for a comment. First, your code is checking for one month rather than 6 months.
The first possibility is that you don't have any records on that date.
Another is that the dates have times associated with them. If so, you can do:
where DATE_ADD(DATE(start_date), INTERVAL 6 MONTH) = CURDATE()
I am writing annual membership registrations to a single db table. I need to keep track of when renewals have occurred in less than 11 months from their last renewal.
I look for the duplicate rows based on multiple criteria. I currently have this working with out the 11 month criteria, although it's slow. Here's what I currently use.
SELECT y_reg.* FROM y_reg WHERE (((y_reg.season) In (SELECT season FROM y_reg As Tmp
GROUP BY season, Father_Last_Name, Father_First_Name
HAVING Count(*)>1
AND Father_Last_Name = y_reg.Father_Last_Name
AND Father_First_Name = y_reg.Father_First_Name)))
ORDER BY y_reg.season, y_reg.Father_Last_Name, y_reg.Father_First_Name
I have a field Date which is the date of the renewal that I need to evaluate. I'd like to add something like "AND Date - Date < 335"
335 is the number of days and is about 1 month short of a year. But I just keep getting syntax error because I clearly don't know what I'm doing.
Date arithmetic works quite well in MySQL; you just need the knack.
You can say things like
AND later.Date >= earlier.Date
AND later.Date < earlier.Date + INTERVAL 11 MONTH
That particular pair of comparisons comes up true if the later date occurs in the time range between the earlier date and 11 months later.
In general you can say stuff like this to do date arithmetic.
datestamp + INTERVAL 1 HOUR
datestamp - INTERVAL 5 MINUTE
datestamp + 1 MONTH - 3 WEEK
datestamp - INTERVAL 3 QUARTER (calendar quarters)
LAST_DAY(datestamp) + INTERVAL 1 DAY - INTERVAL 1 MONTH
The last item is the first day of the month containing the datestamp. This whole date thing works quite well.
I think you should consider a so-called self-join query to get your duplicate-except-for-date results. Try something like this.
SELECT a.*
FROM y_reg a
JOIN y_reg b ON a.Father_Last_Name = b.Father_Last_Name
AND a.Father_First_Name = b.Father_First_Name
AND b.Date < a.Date - 11 MONTH
AND b.Date >= a.Date - 12 MONTH
Hi i am totally confused with a date logic in my mysql query for a cron job to be run everyday at 12:00 AM
I am working on a auto listing website where the car listings are having a expiry date in mysql datetime format.
All the expired listings will be deleted from the website after 7 days from the datetime of the expiry
When the cron job will run it has do following things
Task 1 - Send an email alert to the users telling them that their listing has expired.
So I need to select all those listings which have expired since last time the cron job has been run and not include listings before that in order to send the expiry alert email only once per listing.
I tried following sql query for this task (Again confused with this as well)
SELECT car_id FROM cars WHERE expiry_date > DATE_SUB(NOW(), INTERVAL 1 DAY) AND expiry_date < NOW()
Task 2 - Will send an email alert to users telling them that listing is going to be permanently deleted after 24 hours.
So I need to select all those listings which are going to be deleted in more than 24 hours / 6 days have passed since they were expired and i need to make sure that they get minimum 24 hours time to renew them. Also i need to select / build the sql query in such a way that only those listings get selected which are going to expiry in 1 days and not other in order to avoid multiple email alerts instead of one time email alert
I tried following sql query for this task (I am totally confused with this query)
SELECT car_id FROM cars WHERE expiry_date > DATE_SUB(NOW(), INTERVAL 7 DAY) AND expiry_date < DATE_SUB(NOW(), INTERVAL 1 DAY)
Task 3 - Delete all the listings which were expired more than 7 days ago
I tried following sql query for this task
SELECT car_id FROM cars WHERE expiry_date < DATE_SUB(NOW(), INTERVAL 7 DAY)
Please help me in perfecting all the 3 queries so that the cron does it job exactly as i want. Also please let me where it has to >= (greater than or equal to) or <= (less than or equal to)
Here is the sqlfiddle table structure and couple of records (though they are not expired yet)
http://sqlfiddle.com/#!2/cfcdf
I will really appreciate the help.
Is this what you are looking for? Please try to add another column to see the differnce between expiry_date and current date time for you to get a better idea of the dates you are dealing with. Please look into some dates functions in MYSQL.
SQLFIDDLE DEMO
-- 3rd query expiry dates older than 7 days from
-- today
SELECT car_id, expiry_Date,
DATE_sub(NOW(), INTERVAL 7 DAY)
FROM cars
WHERE expiry_date <=
DATE_sub(NOW(), INTERVAL 7 DAY)
;
-- same
SELECT car_id, expiry_Date,
DATE_ADD(NOW(), INTERVAL -7 DAY)
FROM cars
WHERE expiry_date <=
DATE_ADD(NOW(), INTERVAL -7 DAY)
;
-- 2nd query going to expire in exactly 1 day
SELECT car_id, expiry_date,
Now() + interval 1 day
FROM cars
WHERE expiry_Date = Now() + interval 1 day
;
-- 1st query: expired
SELECT car_id FROM cars
WHERE expiry_date < Now()
;
-- 1st query: expired last 24 hours
SELECT car_id,DATEDIFF(expiry_date, Now())
FROM cars
WHERE expiry_Date < Now()
AND expiry_Date >= Now() - interval 1 day
;
Check out these queries
select * from cars where datediff(EXPIRY_DATE,now())=-1;
select * from cars where
datediff(DATE_ADD(EXPIRY_DATE, interval 24 hour),now())>=1 and
datediff(DATE_ADD(EXPIRY_DATE, interval 24 hour),now()) <=2;
select * from cars where datediff(expiry_date,now())<=-7;
ope they are working according to your need.
fiddle http://sqlfiddle.com/#!2/785ea/5
There is nothing significantly wrong with your queries, if you do not understand the functions that you have used then google them and read about them until you do.
There is a fundamental problem in your approach in that it relies on the cron job being run at exactly 24 hour intevals - to the milisecond - or there will be double ups and/or omissions.
You need another table to store details of when your batch program last ran; intitialise this with 1 row with a date a long time in the past so that we have a starting point.
You can get the most recent batch by SELECT MAX(date_ran) FROM BatchRecordTables. Store this in a local variable T0. Get the current time, store this in a local variable T1 (Do not use NOW() in multiple queries as they will be slightly differant times and you need them to be the same). I do not know the syntax for this is MySQL - you will have to look it up.
Your situations then become.
Send email to people whose listings have expired since that last time the cron job was run i.e. SELECT car_id FROM cars WHERE Expiry_Date BETWEEN T0 AND T1. This will only select people whoose listings have expired between this batch and the previous one.
For the second case, we need to know that these people have got the first email i.e. that their listing had expired before the last batch run so SELECT car_id FROM cars WHERE Expiry_Date BETWEEN DATE_SUB(T1, INTERVAL 6 DAY) AND T0. This will only select people whoose listings expired before the last batch (i.e. they got the exprired email) and more than 6 days ago.
Same logi applies - we want to know they got the second email. SELECT car_id FROM cars WHERE Expiry_Date BETWEEN DATE_SUB(T1, INTERVAL 7 DAY) AND DATE_SUB(T0, INTERVAL 6 DAY)
May I also suggest that you do not permenantly delete the listings but either copy them to a DeletedListings table or Flag them with a Deleted column - each has its own pros and cons. In the information age, never throw data away - you never know when it might be valuable.
I can normally do this but it appears my brain is not functioning well right now and I'm missing something.
Every day via a cron job that is run at 1am, I want to get a count of rows that were inserted yesterday, and the date.
ie
SELECT DATE(added) as date, COUNT(*) FROM bookings WHERE added = DATE_SUB(NOW(), INTERVAL 1 DAY) GROUP BY date
'added' contains a timestamp ie '2011-04-18 12:31:31'
What am I getting wrong here? I know there are many rows added yesterday but my query is returning 0 results and no mysql_errors :(
Any ideas?
Please try
SELECT DATE(added) as yesterday, COUNT(*) FROM bookings WHERE DATE(added) = DATE(DATE_SUB(NOW(), INTERVAL 1 DAY)) GROUP BY yesterday
or perhaps
SELECT DATE(added) as yesterday, COUNT(*) FROM bookings WHERE DATE(added) = DATE_SUB(CURDATE(), INTERVAL 1 DAY) GROUP BY yesterday
Updated
Corrected the WHERE part.
well whatever NOW() is will return the time portion and unless they were added at exactly that time the day before they wont be counted.
So either use BETWEEN and specify time range, or format the date in your query to only match on the day month year components and not time
WHERE added = does only match exact NOW() - 1 DAY, you should select by a range instead.