Can somebody help me with my report view problem. I need to view monthly organization report. I do get the report for one month but the problem is it didn't take the first day of the month as the initial. from the day the report has been generate, it is just count 30 days backward. therefore it will take the report for the previous month too since it didn't start from 1 day of every month. this is the code that i used.
SELECT *
FROM aduan_form
WHERE tarikh >= SUBDATE(SYSDATE(), INTERVAL 30 DAYS)
i know there is something wrong with it, i already try to add the format in sysdate() which is :
SELECT *
FROM aduan_form
WHERE tarikh >= SUBDATE(SYSDATE('%Y-%m-01'), INTERVAL 1 MONTH)
but the result still the same. how can i fix this problem?
For Oracle, this would help:
Oracle, Make date time's first day of its month
#MatBailie said: According to http://psoug.org/reference/date_func.html, this should work a dandy...
SELECT TRUNC(yourDateField, 'MONTH') FROM yourTable
Related
We have a database of films, and need to select the film with a start and end date within the current week. We have two columns in the SQL table, both of type "date", and are written in the format 2015-01-25 (ISO)(YYYY-MM-DD). We need to select the entry that occurs within the current week. The start date for the film is usually the Friday of the week, and the end date is usually the Sunday of the week. I want to be able to show what the upcoming film for the upcoming weekend will be, no matter what day of the week they check. I have written the following PHP and SQL query, but I'm not getting any data back when I echo the $result.
$date = strtotime("now");
$last = strtotime('next Sunday');
$date = date('Y-m-d',$date);
$last = date('Y-m-d',$last);
$result = mysql_fetch_array(mysql_query("SELECT * FROM campusFilms WHERE startDate BETWEEN $date AND $last"));
Any assistance would be greatly appreciated, and I am happy to elaborate on anything needed. I have searched other StackOverflow questions but none of them quite answered this specific case.
SELECT *
FROM campusFilms
WHERE WEEK('2015-02-05') BETWEEN WEEK(startDate) AND WEEK(endDate);
http://sqlfiddle.com/#!2/476d3/3
This solution cannot use an index so, if performance is an issue, we can look at alternative solutions.
Why not just use YEARWEEK() ?
SELECT whatever_you_need
FROM campusFilms
WHERE YEARWEEK(CURDATE()) BETWEEN YEARWEEK(startDate) AND YEARWEEK(endDate);
yearweek returns the year and week of any given date which will handle multiple years.
If all you care is to find records where startdate is between the Friday and Sunday of the current week, then you don't even need to use PHP to compute dates, you can get mysql to do all the work for you:
SELECT *
FROM campusFilms
WHERE startDate BETWEEN
DATE_ADD(CURDATE(), INTERVAL(-2 + MOD(8-DAYOFWEEK(CURDATE()),7)) DAY)
AND
DATE_ADD(CURDATE(), INTERVAL(MOD(8-DAYOFWEEK(CURDATE()),7)) DAY)
This works regardless of what day of the week it is today. If it's Friday, it'll give you films between today and the day after tomorrow. For Saturdays, it'll give you films between yesterday and tomorrow and for Sundays, it'll give you films between two days ago and today.
I am trying to add a month to a date in posgresql, while setting DAY to the last day of the month.
How?
An example
UPDATE temp
SET expiration_date = expiration_date + interval '1' month
WHERE name = 'xxx'
The thing is, that if date was 2014-04-30 for example, it will add one month, and date will become 2014-05-30, and May does have 31 days.
Examples of what i want to accomplish
2014-04-30 + 1 month -> 2014-05-31
2014-05-31 + 1 month -> 2014-06-30
Need some tips on that. Is it possible in postgres? I could use PHP to count it, but I would love to avoid that.
If I understand you correctly, you want a last day of the following month. This can be done like this:
SELECT date_trunc('mon','2014-04-30'::date+interval'2mon')-interval'1day',
date_trunc('mon','2014-05-31'::date+interval'2mon')-interval'1day';
I need to find the birth day of people from the table .. coming in next 7 days from today.
I have a query ..SELECT * FROMtableWHEREdobLIKE BETWEEN %-08-17 AND %-08-24 but it returns the records whose dates are not submitted in database..i mean the entry is 0000-00-00
I have stored the birthdates in dates format in table. Please Help me finding the bug.
Since this is mysql, I don't know if DATE_FORMAT() can work on this. But give this a try.
SELECT * FROM users WHERE DATE_FORMAT(dob, '%c-%d')
BETWEEN DATE_FORMAT('1983-08-17', '%c-%d')
AND DATE_FORMAT('1983-08-24', '%c-%d') OR (MONTH('1983-08-17') > MONTH('1983-08-24')
AND (MONTH(dob) >= MONTH('1983-08-17')
OR MONTH(dob) <= MONTH('1983-08-24')))
any year can be used (just to complete the date format) since year does not matter
UPDATE 1
Tested it on SQLFiddle.com
SQLFiddle Demo
UPDATE 2
I'm sorry for my first answer. I honestly missed to read this line coming in next 7 days from today. And I think that was the reason why I was downvoted by Imre L. He has his point. The reason why I posted the answer like that was because I thought the OP was asking for the days in between regardless of the year. So here is the update.
SELECT ....
FROM ....
WHERE DATE(dob) BETWEEN NOW() AND NOW() + INTERVAL 7 DAY
Hope it's clear now. :D
this will handle correctly cases wen there is a month or year change between the date range:
select *
from people
where (DAYOFYEAR(dob)+IF(DAYOFYEAR(CURDATE())>DAYOFYEAR(dob),1000,0))
between DAYOFYEAR(CURDATE())
and (DAYOFYEAR(CURDATE() + INTERVAL 7 DAY)+IF(DAYOFYEAR(CURDATE())>DAYOFYEAR(CURDATE() + INTERVAL 7 DAY),1000,0))
By converting the dob date into this year's date you can avoid issues where the period crosses a month or year boundary. This selects all rows where the birthdate occurs in the coming week:
SELECT * FROM users
WHERE concat( year(now()), mid(dob,5,6) )
BETWEEN now() AND date_add(now(), interval 7 day)
SELECT
str_to_date(DATE_ADD(dob, INTERVAL (YEAR(CURRENT_DATE()) - YEAR(dob)) YEAR), '%Y-%m-%d') BIRTHDAY,A.*
FROM app_membership A
WHERE str_to_date(DATE_ADD(dob, INTERVAL (YEAR(CURRENT_DATE()) - YEAR(dob)) YEAR), '%Y-%m-%d')
BETWEEN str_to_date('15-10-2017','%d-%m-%Y') and str_to_date('10-11-2017','%d-%m-%Y')
ORDER BY BIRTHDAY ASC;
Try this. Worked for me.
Lets list people who born in any month/year between december 14 and august 24. We know its an year before another one. We must count with months in the previous year. It's complex because you may have a problem comparing the month of the starting date with the month of the ending date. However, it may be solved with this query:
SELECT * FROM t_users WHERE (DATE_FORMAT(d_birth, '%m-%d')
BETWEEN DATE_FORMAT('2017-12-14', '%m-%d') AND
DATE_FORMAT('2018-08-24', '%m-%d'))
OR(MONTH('2017-12-31') >= MONTH('2018-08-24')
AND (MONTH(d_birth) >= MONTH('2017-12-31')
OR MONTH(d_birth) <= MONTH('2018-08-24')))
I am currently trying to write a little program to track time-off requests for employees. I'm fairly new to MYSQL and PHP, so it's a learning project for me as well. I've run into this problem which I do not seem to be able to figure out.
I want to display time off requests for a given week (Mon-Fri). I've got the requests in a table 'requests', with a 'Starttime' and 'Endtime' in separate fields, both Date/Time.
I can currently easily search and retrieve requests that have either (or both) Starttime or Endtime values that fall within the given ISO week I am looking at (WEEKOFYEAR() ).
What I need to be able to do is search for requests that may include days in the ISO week I am displaying, but not have a Starttime or Endtime during that week.
Example:
Employee takes off Tuesday of Week 24 through Friday of Week 24.
Currently, I would correctly display that the employee was off starting Tuesday and show a return on that Friday, but on Wed and Thursday nothing would be entered.
Employee takes off Friday of Week 30 through Monday of Week 32.
Currently, I would show that employee as not being 'off' during Week 31 because the search would not show a Starttime or Endtime during that week even though they are actually off the entire week. Though the Starttime and Endtime would be noted on the correct days.
Right now, what I do to work around this is run 5 additional queries to check if the date for each day Mon-Fri during Week 31 is contained BETWEEN the Starttime and Endtime of each request in the db.
I hate to run a total of 6 queries to get this information. Is there an easier way to get that information?
I just wrote a calendar app for events and ran into this- how bout something like this:
SELECT * FROM Requests WHERE
Start_Date BETWEEN <first_day_of_week> AND <last_day_of_week>
OR
End_Date BETWEEN <first_day_of_week> AND <last_day_of_week>
OR
<day_of_week_monday> BETWEEN Start_Date AND End_Date
OR
<day_of_week_tuesday> BETWEEN Start_Date AND End_Date
OR
<day_of_week_wedenesday> BETWEEN Start_Date AND End_Date
OR
<day_of_week_thursday> BETWEEN Start_Date AND End_Date
OR
<day_of_week_friday> BETWEEN Start_Date AND End_Date
GROUP BY ID ORDER BY Start_Date ASC, Date ASC
While < value_names > are generated with php via the currently viewed week requested. Should cover your bases.
What format are these dates stored in the DB? Assuming they are using MySQL's DATE format, its pretty easy to do. You can just use comparison operators on the fields and MySQL will do the work for you in one query.
$sql = "SELECT * FROM table WHERE startdate <= $someday AND $someday <= enddate";
Sticking to your week of year way of doing it, you can run a check to see if the current week falls within the range of the starting week off and the ending week off.
SELECT * FROM table WHERE WEEKOFYEAR(Starttime) <= N AND WEEKOFYEAR(Endtime) >= N;
(where N is the week you're displaying)
What you'd want to do, once you get the rows, is parse each day in PHP to see if that day falls between the starttime and endtime.
A good method for that is using:
$start_timestamp = strtotime($row['Starttime']);
$end_timestamp = strtotime($row['Endtime']);
You can use a similar method to get a timestamp of the day you are displaying, and see if it falls between $start_timestamp and $end_timestamp to determine if that day is off.
since you mentioned PHP as the display:
$start=30; //Friday of Week 30
$end=32; //Monday of Week 32
foreach (range($start, $end) as $number) {
echo $number;
}
You would expect to get 30,31,32.
You will have to verify that $start is < $end though as well for December to January weeks.
The range for WEEKOFYEAR() is 1-53. In this case, add 53 to the $end and display mod of $end if greater than 53:
$start=52; //Friday of Week 52, 2009
$end=2; //Monday of Week 2, 2010
If($start>$end) $end+=53;
foreach (range($start, $end) as $number) {
if($number>53){
echo $number%53;}
else{
echo $number;
}
}
You would expect to get 52,53,1,2
Probably need the query to read either like the big one with all the ORs or something like this
WHERE
Starttime <= <value for last day/time of the week>
AND
Endtime >= <value for the first day/time of the week>
That should get all the dates you need that could fall in that week, then you parse the records you get with PHP to find the ones for that actual week... though there may be an easier way to do that.
I need to calculate a difference between a starting date/time and an ending date/time. But, I only want to do this for the 5-day work week (exclude Sat/Sun as days). What is the best way to do this? My thought is that from the date, I'll have to get the day of the week and if it is a weekday, then I add to the accumulator. If it's not, then I don't add anything.
I'm sure someone has done this before, but I couldn't seem to find anything searching. Any links or other help would be very useful.
Many thanks,
Bruce
DAYOFWEEK returns 1 for Sunday and 7 for Saturday. I'm not sure how your schema is set up, but this will perform a TIMEDIFF of two dates that are on a Monday - Friday work week.
select TIMEDIFF(date1,date2) from table
where DAYOFWEEK(date1) not in (1,7) and DAYOFWEEK(date2) not in (1,7)
MySQL DATE/TIME functions
EDIT: From Bruce's comment about holidays. If you have a table full of holiday dates, something like this would work to exclude processing those days:
select TIMEDIFF(date1,date2) from table
where date1 not in (select holiday from holiday_table) and
date2 not in (select holiday from holiday_table) and
DAYOFWEEK(date1) not in (1,7) and DAYOFWEEK(date2) not in (1,7)
NETWORKDAYS() "Returns the number of whole working days between start_date and end_date. Working days exclude weekends and any dates identified in holidays. Use NETWORKDAYS to calculate employee benefits that accrue based on the number of days worked during a specific term." according to the Excel 2007 help file.
The "between" description is a bit inaccurate because it includes the start and end dates, i.e. networkdays(21-01-2010. 22-01-2010) = 2. It also takes no account of times.
Here's a function in PHP that will give the same results. It doesn't work properly if the end date is less than the start date, nor does do anything about holidays (see below the function).
function networkdays($startdate, $enddate)
{
$start_array = getdate(strtotime($startdate));
$end_array = getdate(strtotime($enddate));
// Make appropriate Sundays
$start_sunday = mktime(0, 0, 0, $start_array[mon], $start_array[mday]+(7-$start_array[wday]),$start_array[year]);
$end_sunday = mktime(0, 0, 0, $end_array[mon], $end_array[mday]- $end_array[wday],$end_array[year]);
// Calculate days in the whole weeks
$week_diff = $end_sunday - $start_sunday;
$number_of_weeks = round($week_diff /604800); // 60 seconds * 60 minutes * 24 hours * 7 days = 1 week in seconds
$days_in_whole_weeks = $number_of_weeks * 5;
//Calculate extra days at start and end
//[wday] is 0 (Sunday) to 7 (Saturday)
$days_at_start = 6 - $start_array[wday];
$days_at_end = $end_array[wday];
$total_days = $days_in_whole_weeks + $days_at_start + $days_at_end;
return $total_days;
}
To take holidays into account, you'd have to work out the number of days using this function, then use a query like
Select count (holiday_date) from holidays
where holiday_date between start_date and end_date
and DAYOFWEEK(holiday_date) not in (1,7)
Be careful that there isn't a problem with the end_date being treated as 00:00 (i.e. first thing in the morning) - you may have to condition it to be 23:59:59 so that it works properly. It all depends on how your holidays are stored.
To return the holidays in the same time period and subtract that from the number you first thought of.