I'm trying to subtract now() - the created datetime field from 30 days to get the days remaining as a datetime field, mysql gives me an error for this sort of thing.
SELECT id, created, INTERVAL 30 DAY - CURRENT_DATE - created as timeleft FROM tablename
Use the Date add function to subtract 30 days like this.
SELECT DATE_ADD(current_date, interval -30 day);
Return the difference in days between two date values:
SELECT DATEDIFF(current_date, "2017-06-15");
You can use the combination of these functions to achieve the desired result.
In mysql you should translate the datetime to unix_timestamp to calculate the difference between the two days
SELECT id, created, 30 - (unix_timestamp(CURRENT_DATE) - unix_timestamp(created )) / 3600/24 as timeleft FROM tablename
Related
I'm working on a project where I want to display data after 3 days have passed.
What I'm having an issue with is getting the current date dynamically in php/sql. I'm aware of how to get the current date in php, but I dont know how to compare that value to the date that I have in the sql database.
You can do that directly in SQL
select * from your_table
where date_column <= curdate() - interval 3 day
You can use an interval select to limit the records to within 3 days if the column you're checking istimestamp, date, or datetime.
select * from tablename where timestamp_column >= NOW() - INTERVAL 3 DAY
You can use DATEDIFF function to check for days.
SELECT *
FROM tablename
WHERE DATEDIFF(CURRENT_DATE(), datecol) >= 3;
I am using MySql database. and I am executing query like this:
select *
from Request
where
DATE_FORMAT(created_On,'%e/%m/%Y') between DATE_FORMAT(CURDATE() - 30, '%e/%m/%Y') and DATE_FORMAT(CURDATE(),'%e/%m/%Y')
it will return blank, means no records in result.
but if I write like this
select *
from Request
where
DATE_FORMAT(created_On,'%e/%m/%Y') between DATE_FORMAT(CURDATE() - 27, '%e/%m/%Y') and DATE_FORMAT(CURDATE(),'%e/%m/%Y')
It will fetch 100 hundred rows.
I want to ask that why i am subtract 30 days from current Date?
Assuming your date columns are proper DATETIME or DATE fields, you should not use DATE_FORMAT(). Use DATE_SUB() to subtract 30 days:
If created_On is DATETIME, use DATE() to truncate off the time portion:
SELECT *
from Request
where
DATE(created_On) BETWEEN DATE_SUB(CURDATE(), INTERVAL 30 DAY) AND CURDATE()
If created_On is DATE, just use:
SELECT *
from Request
where
created_On BETWEEN DATE_SUB(CURDATE(), INTERVAL 30 DAY) AND CURDATE()
You can also use the TO_DAYS function on the dates which allows you to compare dates and datetime fields:
SELECT * from Request
where TO_DAYS(created_On) BETWEEN TO_DAYS(DATE_SUB(CURDATE(), INTERVAL 30 DAY)) AND TO_DAYS(CURDATE())
Can you at least first post a sample of your data and Identify created_on first, so that we could establish a proper analysis of your question? Because to be honest when you are using between the first assumption would be created_on would be of type date, but then again the date_format function transform your date into a string so using between with a string as a value will have a different result than using between with a date
I have a date field in the database table of this format 2012-02-1.i need to write 3 different queries:
a.) I need to retrieve all fields where date is between today and previous 5 days.
b.) I need to retrieve all fields where date is older than 5 days from today's date.
c.) I need to retrieve all fields where date between '5 days ago' to '30 days ago'
Can I use some inbuilt mysql function.
Manipulating the query below:
SELECT fields
FROM table
WHERE date >= CURDATE() - 5
or something like this
Or using a between clause. I am not getting the syntax correct.
SELECT p.status,p.downpayment_date,p.policy_id,i.id,i.policy_type,i.carrier,i.policy_number,i.client_id,c.id,c.client_name FROM pdp_payment AS p,pdp_policy_info AS i,pdp_client_info AS c WHERE p.policy_id=i.id AND i.client_id=c.id AND (((p.status='close pending') OR (p.status='Cancel')) AND (p.downpayment_date BETWEEN ((INTERVAL 5 DAY AND CURDATE()) - (INTERVAL 30 DAY AND CURDATE()))) )
Date between today and previous 5 days.
SELECT fields FROM table
WHERE date_field BETWEEN CURRENT_DATE - INTERVAL 5 DAY AND CURRENT_DATE
Date smaller than previous 5 days.
SELECT fields FROM table
WHERE date_field < CURRENT_DATE - INTERVAL 5 DAY
For all fields where date is between today and previous 5 days.
SELECT fields
FROM table
WHERE your_date_field_name BETWEEN CURDATE() - INTERVAL 5 DAY AND CURDATE()
You can work out other problems in a similar way
date is a keyword, so when you use it as a field name it MUST be enclosed in backticks ` otherwise you will get a parse error.
To get the range you want:
WHERE `date` BETWEEN DATE_ADD(NOW(),INTERVAL -30 DAY) AND DATE_ADD(NOW(),INTERVAL -5 DAY)
I'm using
SELECT * from tbl_name WHERE DATE_SUB(CURRENT_DATE(), INTERVAL 3 DAY)
to select data for specific days. The problem is that line gets data right before 3 days.
What to do so selected data to be period three days before till now ?
First your field should be of type datetime or date and then you can use a between clause
your_date_field BETWEEN now() - INTERVAL 72 HOURS AND now()
How can I subtract time in MySQL? For example, today is 16 March; I want to subtract 15 days to reach 1 March. Are there any methods that can be used to subtract 15 days from the current date?
SELECT DATE(NOW()-INTERVAL 15 DAY)
For a list of units see http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_date-add
Not entirely related to this question but is related to the title:
SELECT SUBTIME("10:24:21", "5"); -- subtracts 5 seconds. (returns "10:24:16")
SELECT SUBTIME("10:24:21", "01:00:00"); -- subtracts one hour. (returns "09:24:21")
Documentation: MySQL SUBTIME function
Use:
SELECT NOW() - INTERVAL 15 DAY
to keep the datetime precision.
You can use this :
SELECT DATE(NOW()-INTERVAL 15 DAY);
for when you want to subtract the number of days.
In order to subtract the time instead, say 15 minutes, the following should work:
SELECT(DATE_SUB(NOW(), INTERVAL '15:0' MINUTE_SECOND));
Adding the reference link again :- https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-add.
Yes its possible using date function in Mysql
select distinct
lastname,
changedat, date_add(changedat, interval -15 day) as newdate
from employee_audit;
lastname and changedat is field name and employee_audit is table name.
I have subtract 15 days from my date - check image please. thanks