I'm completely stumped on this one, being trying for hours but with no success, hoping someone can help. Trying to build a cron script to run daily that returns the rows that are exactly 7 days older than the current date.
The thing is, my query is not returning anything. No error messges, nothing (I know there are entries in the DB from the last 7 days - we get about 7000 new entries a day, so they are there!) I've tried a SELECT * and echo out the edit date with success, so everything is working, apart from my SQL script.
The column I'm referencing (edit_date) is type 'datetime' formated with Y-m-d h-m-s. This column always has a datetime value assigned on both create and edit.
function get_ad_sql($table){
$sql = "SELECT
*
FROM
".$table."
WHERE
edit_date = DATE_SUB(NOW(), INTERVAL 7 DAY)
";
return $sql;
}
And calling the function and 'trying' to echo the primary_key:
$sqlAng = get_ad_sql('angebote');
$result = mysql_query($sqlAng);
while($row = mysql_fetch_array($result)){
echo $row['primary_key'];
}
I've tried every variation of DATE_SUB(NOW(), INTERVAL 7 DAY), including CURDATE(), DATE_FORMAT(edit_date, '%m/%d/%Y') that I could find on here and online, but couldn't get anything to work. Hope someone can help me!
It is very rare to get same datetime entries which gives date and time upto seconds. Therefore, for getting appropriate results we need to ignore the time part, and deal with date part, thus, using CURDATE() function.
You could do that ignoring the time part and compare with the date using following:
function get_ad_sql($table){
$sql = "SELECT
*
FROM
".$table."
WHERE
DATE(edit_date) = DATE_SUB(CURDATE(), INTERVAL 7 DAY)
";
return $sql;
}
NOW() returns DATETIME value, you should use a DATE function to get date without time, e.g. -
SELECT * FROM table WHERE edit_date = DATE_SUB(DATE(NOW()), INTERVAL 7 DAY);
If type of edit_date field is DATETIME, then this field should be wrapped by DATE() function too -
SELECT * FROM table WHERE DATE(edit_date) = DATE_SUB(DATE(NOW()), INTERVAL 7 DAY);
Your script is working... I highly doubt you have something exactly 7 days ago (to the second).
Perhaps you wanted something WHERE edit_date>DATE_SUB(NOW, INTERVAL 7 DAY) AND edit_date<DATE_SUB(NOW, INTERVAL 6 DAY)?
Or, if you want to compare just the date (not the time) portions, compare the output of DATE() instead.
SELECT SUBDATE(CURDATE(), 7)
Try this.
Related
Been trying to get this to work for 2 days and this is frustrating me.
Trying to get records 30 minutes before a date/time (Format in database is datetime).
This is what I have:
select id
from tbl_events
WHERE DATE_SUB(NOW(), INTERVAL -30 MINUTE) = DATE_FORMAT(start, '%Y-%m-%d %H:%i:%s')
What the heck am I missing?
Thanks
You already use the function DATE_SUB() so within that function you can simply use INTERVAL 30 MINUTE without the minus sign.
You also don't have to format start if it is a datetime or timestamp field.
Finally you shouldn't use = because times are hardly every exactly equal.
This gives this query:
select id
from tbl_events
WHERE start < DATE_SUB(NOW(), INTERVAL 30 MINUTE)
Probably. It's not extremely clear what you're trying to do.
I am retrieving results from my database using the current date.
My current code looks like this:
$sql = "SELECT *
FROM `1ymzj0g_orders`
WHERE `processed` = '1'
AND DATE(`order_date`) = CURDATE() LIMIT 100";
This is great for getting results from TODAY although for my circumstances, it needs to get the results from today and up to 2am tomorrow morning.
I am guessing under the current layout after midnight my results will clear, however I need to keep the results after midnight, but not for two whole days, just up to about 2am.
Is this possible? And if so could you provide me with some advice here?
you can use DATE_ADD with an HOUR interval to set a limit on the order_date
some thing similar to this :
WHERE DATE(`order_date`) = CURDATE() OR DATE(`order_date`) < DATE_ADD(CURDATE(), INTERVAL + 12 HOUR)
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Get from database but only last 30 days
Hi I have some php code which I use to count the rows in a database from the last 30 days. The problem is, that if I change the piece of code so that the number changes from -30 to -20, the output number goes from 272 to 360 instead of going down.
Here is the code:
$result = mysql_query("SELECT * FROM all_count WHERE DATEDIFF(date,NOW()) = -30 and member ='000002'");
$num_rows60 = mysql_num_rows($result);
Try this
select * from `table` where `yourfield` >= DATE_SUB(CURDATE(), INTERVAL 3 MONTH)
For days, year see below for example.
DATE_SUB(CURDATE(), INTERVAL 15 DAY) /*For getting record specific days*/
DATE_SUB(CURDATE(), INTERVAL 1 YEAR) /*for getting records specific years*/
For Anand, query
BETWEEN DATE_SUB( CURDATE( ) ,INTERVAL 6 MONTH ) AND DATE_SUB( CURDATE() ,INTERVAL 3 MONTH )
/* For Getting records between last 6 month to last 3 month
It's better to compare
`date`< DATE(NOW() - INTERVAL 30 DAY)
rather than
DATEDIFF(date,NOW()) = -30
In the first case, the date calculation is done only once, at the beginning of the query, and the database can use any indexes on the date column.
The second query must calculate the DATEDIFF on every row, and the database can't use any indexes. The second query forces a full table scan.
Also, I strongly suggest that you not call your column date. Yes, I know you can quote the name with backticks, but that's just messy and when you forget then your syntax errors will be hard to forget. Come up with a more descriptive name for the column. What kind of date is it? What does the date represent?
You can use this instead:
$result = mysql_query("SELECT * FROM all_count WHERE `date`< DATE(NOW() - INTERVAL 30 DAY) and member ='000002'");
As you can see in the documentation here, the DATEDIFF function in MySQL tells you the difference in days of the first date to the second.
Your query only selects all rows where the difference is exactly 30 days and not those that are up to 30 days ago. So it's completely possible, that the number of rows for the date 20 days ago is higher than 30 days ago. What you most likely wanted was:
SELECT * FROM all_count WHERE DATEDIFF(date,NOW()) >= -30 and member ='000002'
I'm relatively a newbie, would appreciate help :)
I am looking to find entry(ies) from a mysql table which were created some time between now and a certain timestamp in the past. This time in the past is stored in a variable (say $timeinthepast, a few hours ago or yesterday, whatever). And the column 'timecreated' in the table is the timestamp of the creation of entry.
Would the following work? If not, what would?
Thanks!
<?php
$query = mysql_query("SELECT * FROM table1
WHERE timecreated = DATE_ADD(NOW(), INTERVAL -$timeinthepast)");
?>
I am basing this on: Query to select records from a database that were created within the last 24 hours
As long as $timeinthepast is valid (1 MONTH, 2 HOUR, e.g.) in the sql you can try BETWEEN
$query = mysql_query("SELECT * FROM table1
WHERE timecreated BETWEEN
DATE_SUB(NOW(), INTERVAL $timeinthepast) AND NOW()");
I find that the between syntax is the most freindly to use. I have not tested this sorry :)
Select * from `table1` where `timecreated` between DATE_SUB(NOW(), INTERVAL 1 month) and NOW()
You will need to make your time in the past a whole unit of some description.
I am currently developing a sports website where one of the pages with be forthcoming fixtures in which the user will be able to what team and where the team are playing their next match.
I have a database with the following fields...
ID
TEAM NUMBER
OPPOSITION
VENUE
DATE
MEET TIME
MATCH TYPE
So a row of data pulled from the DB and print_r'd may look like this
ID=>[1] TEAM NUMBER=>[1] OPPOSITION=>[YORKSHIRE] VENUE=>[HOME] DATE=>[2009/4/25] MEET TIME=>[13.00] MATCH TYPE=>[CUP]
My problem is i cannot work out how to show the next match dependent on what the current date is, so for example for now I want the site to show all the games that will happen over the weeken of the 25th April 2009 and then once that has gone the fixtures for the next weekend.
Hope this makes sense and some one give me an idea of how to tackle this.
select * from my_events where date between now() and date_add(now(), interval 7 day);
Should do it I think.
Instead of relying entirely on MySQL, you can also use PHP's strtotime() function:
$query = "select * from my_events where date between now() and ".
date("Y-m-d", strtotime("+1 week"));
For MySQL check out the Date and Time functions. You can use a combination of CURDATE() and ADDDATE() to achieve what you need.
Your description is very vage but try something like this:
SELECT all_fields_you_need
FROM table_name
WHERE `DATE` > CURDATE() AND `DATE` <= DATE_ADD(CURDATE(), INTERVAL 7 DAY)
ORDER BY `DATE` ASC
(not tested, just written as it came into my mind...)
Load it all into an array and display the data
you can get the system date (in Oracle using sysdate) and then add to it, so look for all records where DATE = sysdate + 7. You may have to play with this a little, formatting the date so that sysdate + 7 returns a date without the time, but that is basically what you need.
EDIT:
If you want the event between now and a week from now (if games are only on the weekend, then this will return next weekend's games) do
DATE > sysdate AND DATE <= sysdate + 7
To get the next match for team xxx
SELECT *
FROM myTable
WHERE TEAM NUMBER = xxx
AND DATE = ( SELECT MIN(DATE)
FROM myTable
WHERE TEAM NUMBER = xxx
AND DATE > NOW() )
I suspect this is what you really want, if matches only take place at weekends (which seems to be an assumption from your question).
Today + 7 days is not the same as next weekend unless today happens to be the same day of the week as the match.