I've been asking many question here, but it was dead end, I just want to make a simple select from date_column+3 day, I'm new to MySQL.
I've tried with this query
SELECT *
FROM pemesanan
WHERE pemesanan.`date` = DATE(DATE_ADD(date, INTERVAL 3 DAY))
but the result is empty, here's my column
date
2016-08-10
2016-08-04
2016-08-07
it must be show the 2016-08-10 data, but its not,
Can somebody enlighten me, I've been frustrated with this
If you use date right side you should use date left side
SELECT *
from pemesanan
where date(pemesanan.`date`) = DATE(DATE_ADD(NOW(), INTERVAL 3 DAY))
If you use the same date pemesanan.date you never get pemesanan.date = pemesanan.date +3
but if you want select the date older than 3 day you shuold use
SELECT *
from pemesanan
where date(pemesanan.`date`) <= DATE(DATE_sub(NOW(), INTERVAL 3 DAY))
and for delete
DELETE from pemesanan
where date(pemesanan.`date`) <= DATE(DATE_sub(NOW(), INTERVAL 3 DAY))
in your case
SELECT *
from pemesanan
where date(pemesanan.tanggal) <= DATE(DATE_sub(NOW(), INTERVAL 3 DAY))
Related
I have a table in MySQL. What would be the sql statement look like to add say 2 days to the current date value in the table?
UPDATE classes
SET
date = date + 1
where id = 161
this adds one second to the value, i don't want to update the time, i want to add two days?
Assuming your field is a date type (or similar):
SELECT DATE_ADD(`your_field_name`, INTERVAL 2 DAY)
FROM `table_name`;
With the example you've provided it could look like this:
UPDATE classes
SET `date` = DATE_ADD(`date` , INTERVAL 2 DAY)
WHERE `id` = 161;
This approach works with datetime , too.
UPDATE table SET nameofdatefield = ADDDATE(nameofdatefield, 2) WHERE ...
This query stands good for fetching the values between current date and its next 3 dates
SELECT * FROM tableName
WHERE columName BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 3 DAY)
This will eventually add extra 3 days of buffer to the current date.
You can leave date_add function.
UPDATE `table`
SET `yourdatefield` = `yourdatefield` + INTERVAL 2 DAY
WHERE ...
update tablename set coldate=DATE_ADD(coldate, INTERVAL 2 DAY)
For your need:
UPDATE classes
SET `date` = DATE_ADD(`date`, INTERVAL 2 DAY)
WHERE id = 161
DATE_ADD(FROM_DATE_HERE, INTERVAL INTERVAL_TIME_HERE DAY)
will give the Date after adjusting the INTERVAL
eg.
DATE_ADD(NOW(), INTERVAL -1 DAY) for deducting 1 DAY from current Day
DATE_ADD(NOW(), INTERVAL 2 DAY) for adding 2 Days
You can use like
UPDATE classes WHERE date=(DATE_ADD(date, INTERVAL 1 DAY)) WHERE id=161
SELECT DATE_ADD(CURDATE(), INTERVAL 2 DAY)
SET date = DATE_ADD( fieldname, INTERVAL 2 DAY )
SELECT ADDDATE(d,INTERVAL 1 DAY)
from table
How can I get records in a table between NOW() and the previous 3am?
This would be easy if it's 9am, but how do I write this if it's 2am? i.e I want the trades between DATE_SUB(CURDATE(), INTERVAL 21 HOURS) and NOW(). I'm looking for some code which can do both without needing to check the time in usercode and choose between two sql statements.
I'm sure there's a simple solution to this, but it's eluding me.
A simple idea is to subtract three hours and compare the date:
where date(date_sub(col, interval 3 hour)) = (case when hour(date) >= 3 then curdate() else date_sub(curdate(), interval 1 day)
Or, more explicitly, just do the comparison in SQL:
where (hour(date) >= 3 and date(col) = curdate()) or
(hour(date) < 3 and date(col) = date_sub(curdate(), interval 1 day)
I'll add my own answer (I finally gave up and explored using IF and found it could be used inside SELECT statements), but #Gordon Linoff might be better - I've no idea which of these is faster.
SELECT IF (NOW() > DATE_ADD(CURDATE(), INTERVAL 3 HOUR),
DATE_ADD(CURDATE(), INTERVAL 3 HOUR),
DATE_SUB(CURDATE(), INTERVAL 21 HOUR))
which can then be used as the conditional on an outer SELECT.
I have a query that selects records created from 1 hour in past from current time.
select ts from <table_name> where ts >= DATE_SUB(NOW(), interval 1 hour);
I can also select date before 7 days using
select count(*) from <table_name> where ts >= DATE_SUB(NOW(), interval 7 day);
How can I use these two date features to get records before 7 days from today and time 1 hour in past from current time.
For example, if the present time is 2015-11-06 10:03:00 then how can I get data for time between 2015-10-30 09:03:00 to 2015-10-30 10:03:00
I tried something like this, but it gives syntax error:
select ts from <table_name> where ts >= DATE_SUB(DATE(NOW()), INTERVAL 7 DAY), interval 1 hour)
select ts from <table_name> where ts >= DATE_SUB(NOW(), INTERVAL 7 DAY), interval 1 hour)
Your examples have syntax errors (too many closing parentheses )). If you want to use DATE_SUB(), you need to use it twice. To get entries between one time and another, use WHERE ... BETWEEN ... AND ...
You can use this:
SELECT ts
FROM iv_split_skill_metrics
WHERE ts BETWEEN
DATE_SUB(
DATE_SUB(DATE(NOW()), INTERVAL 7 DAY),
interval 1 hour)
AND
DATE_SUB(DATE(NOW()), INTERVAL 7 DAY)
Or, even better, skip DATE_SUB() entirely and just do subtraction, like this:
SELECT ts
FROM iv_split_skill_metrics
WHERE ts BETWEEN NOW() - INTERVAL 7 DAY - INTERVAL 1 HOUR
AND NOW() - INTERVAL 7 DAY
Edit: For some reason, you edited your question after I posted this and replaced iv_split_skill_metrics with <table_name> in your question, but the examples above will work regardless. Just use the correct table and column names, of course!
Edit 2: I see now that you want entries between 7 days plus 1 hour ago and 7 days ago. I have tweaked my answer to show you how to do that.
Your goal is not 100% clear but just my attempt:
SELECT ts
FROM table_name
WHERE ts >= DATE_ADD(DATE_ADD(NOW(), INTERVAL -7 DAY), INTERVAL -1 HOUR)
AND ts <= DATE_ADD(NOW(), INTERVAL -7 DAY);
but form performance perspective this query would be much faster:
http://sqlfiddle.com/#!9/9edd1/2
SET #end = DATE_ADD(NOW(), INTERVAL -7 DAY);
SET #start = DATE_ADD(#end, INTERVAL -1 HOUR);
SELECT ts
FROM table_name
WHERE ts BETWEEN #start AND #end;
I have this record in expiry_date column:
2015-04-30 04:15:29
2015-04-22 06:02:07
I need to select where the record is 26 days from expiring. Right now I'm using this which is not working. No records were selected.
SELECT * FROM `client` WHERE `expiry_date` = DATE_ADD(NOW(), INTERVAL 26 DAY)
I've searched this website and many of the answers are using <= operator. This solution partially work. It selects both of my record when I only need 2015-04-30 04:15:29 in expiry_date column.
How do I exactly select date that is going to expired and not all date?
The easy solution to this is to use the date function:
WHERE DATE(expiry_date) = DATE_ADD(CURRENT_DATE, INTERVAL 26 DAY)
However, this prevents the use of an index on expiry_date. An alternative that does work with indexes is:
WHERE expiry_date >= DATE_ADD(CURRENT_DATE, INTERVAL 26 DAY) AND
expiry_date < DATE_ADD(CURRENT_DATE, INTERVAL 26 + 1 DAY)
The reason you're having this issue is that expiry_date is a type of datetime so the time makes it not equal. Just change your code to be:
SELECT * FROM client WHERE DATE(expiry_date) = DATE(DATE_ADD(NOW(), INTERVAL 26 DAY))
I have a table in MySQL. What would be the sql statement look like to add say 2 days to the current date value in the table?
UPDATE classes
SET
date = date + 1
where id = 161
this adds one second to the value, i don't want to update the time, i want to add two days?
Assuming your field is a date type (or similar):
SELECT DATE_ADD(`your_field_name`, INTERVAL 2 DAY)
FROM `table_name`;
With the example you've provided it could look like this:
UPDATE classes
SET `date` = DATE_ADD(`date` , INTERVAL 2 DAY)
WHERE `id` = 161;
This approach works with datetime , too.
UPDATE table SET nameofdatefield = ADDDATE(nameofdatefield, 2) WHERE ...
This query stands good for fetching the values between current date and its next 3 dates
SELECT * FROM tableName
WHERE columName BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 3 DAY)
This will eventually add extra 3 days of buffer to the current date.
You can leave date_add function.
UPDATE `table`
SET `yourdatefield` = `yourdatefield` + INTERVAL 2 DAY
WHERE ...
update tablename set coldate=DATE_ADD(coldate, INTERVAL 2 DAY)
For your need:
UPDATE classes
SET `date` = DATE_ADD(`date`, INTERVAL 2 DAY)
WHERE id = 161
DATE_ADD(FROM_DATE_HERE, INTERVAL INTERVAL_TIME_HERE DAY)
will give the Date after adjusting the INTERVAL
eg.
DATE_ADD(NOW(), INTERVAL -1 DAY) for deducting 1 DAY from current Day
DATE_ADD(NOW(), INTERVAL 2 DAY) for adding 2 Days
You can use like
UPDATE classes WHERE date=(DATE_ADD(date, INTERVAL 1 DAY)) WHERE id=161
SELECT DATE_ADD(CURDATE(), INTERVAL 2 DAY)
SET date = DATE_ADD( fieldname, INTERVAL 2 DAY )
SELECT ADDDATE(d,INTERVAL 1 DAY)
from table