Number of sundays between two dates

Hii ,
How can I get number of sundays between two dates...?
Plz help me in this regard
Shoaib rehman

*& Report ZEX1
REPORT zex1.
DATA :       p_low TYPE d ,
                  p_high TYPE d .
DATA : gv_scnt TYPE i.
p_low = '20100115' .                                       "feb 1
p_high = '20100228'.
IF p_high > p_low.
PERFORM cal_sundays USING p_low .
WRITE :/ gv_scnt.
ELSE.
*             message date combination invalid
ENDIF.
*&      Form CAL_SUNDAYS
*       text
* --> p1        text
* <-- p2        text
FORM cal_sundays USING p_low ."changing gv_scnt.
DATA : lv_week TYPE scal-week,
         lv_sund TYPE d,
         lv_mond TYPE d,
         lv_scnt TYPE i.
DO .
    CALL FUNCTION 'GET_WEEK_INFO_BASED_ON_DATE'
      EXPORTING
        date   = p_low
      IMPORTING
        week   = lv_week
        monday = lv_mond
        sunday = lv_sund.
    IF p_low > p_high.
      EXIT.
    ELSE.
      gv_scnt = gv_scnt + 1.
      p_low = lv_sund + 1.
      PERFORM cal_sundays USING p_low.
    ENDIF.
ENDDO.
ENDFORM.                    " CAL_SUNDAYS
Execute this and check if this meets ur case . Logic should be something like this .
Br,
Vijay.

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How to count number of sundays between two dates

Hi
I want number of Sundays between two dates
example
number of Sundays count between '01-04-2013' and '30-04-2013' in one select query I have to include this as sub query in my select statement.

Hi,
ChakravarthyDBA wrote:
Hi
I want number of Sundays between two dates
example
number of Sundays count between '01-04-2013' and '30-04-2013' in one select query I have to include this as sub query in my select statement.Here's one way:
SELECT       early_date
,       late_date
,       ( TRUNC (late_date + 1, 'IW')
       - TRUNC (early_date,        'IW')
       ) / 7       AS sundays
FROM       table_x
;This does not depend on your NLS settings.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and also post the results you want from that data.
Point out where the statment above is getting the wrong results, and explain, using specific examples, how you get the right results from the given data in those places.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002}

How to Calculate number of months between two dates

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Number of Months ( Considering Leap Year) provided by the dates, end user enters in the form,
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Hi,
ChakravarthyDBA wrote:
Hi
I want number of Sundays between two dates
example
number of Sundays count between '01-04-2013' and '30-04-2013' in one select query I have to include this as sub query in my select statement.Here's one way:
SELECT       early_date
,       late_date
,       ( TRUNC (late_date + 1, 'IW')
       - TRUNC (early_date,        'IW')
       ) / 7       AS sundays
FROM       table_x
;This does not depend on your NLS settings.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only), and also post the results you want from that data.
Point out where the statment above is getting the wrong results, and explain, using specific examples, how you get the right results from the given data in those places.
Always say which version of Oracle you're using (e.g., 11.2.0.2.0).
See the forum FAQ {message:id=9360002}

Find Exact number of days between two dates

How can get the exact number of days between two dates?

An example of business days calculation in SQL */
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/* 1) Take the absolute difference between the dates */
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/* start of period is in */
/* So subtracting these two gives the number of days */
/* between the two dates but including all of the days in */
/* the weeks that the dates start and end in. When this */
/* number is divided by 7 it gives the number of weeks. */
/* Multiplying by 2 gives the number of weekend days.     */
/* 3) Subtract 1 day if the ending date is on a saturday */
/* DECODE(to_char(to_date('&todate'),'D'),7,-1,0) */
/* --> If the day of the week is saturday (7), returns -1 */
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/* DECODE(to_char(to_date('&frdate'),'D'),1,-1) */
/* --> If the day of the week is sunday (1), returns 1 */
/* 5) Add one day to make the range inclusive (The '1 + ' ) */
/* Author: Kenneth Atkins ([email protected]) */
/* http://www.olywa.net/katkins/oratip */
define frdate = '&1'
define todate = '&2'
set verify off
select
     '&frdate' From_Date
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FROM_DATE TO_DATE BUSINESS_DAYS
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I wanted to know how do you calculate the number of days between two dates

i wanted to know how do you calculate the number of days between two dates in java ? i get both the dates from the database. i guess there are many issues like leap year and Febuary having diff no of months ..etc.

thanks..
I solve my problem as
public class MyExample {
    public static void main(String a[]) {
        String stdate = "2009-03-01";
        java.sql.Date currentDate = new java.sql.Date(System.currentTimeMillis());
        java.sql.Date preDate = java.sql.Date.valueOf(stdate);
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//        System.out.println(dateCom);
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}

Get number of hours between two dates and two hours using factory calendar

Hello all,
I have the following requirement: I need to calculate the number of hours between two dates and two hours (start date- finish date and start hour-finish hour) or timestamps using a factory calendar. I must program it on CRM environment.
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Please check function module DURATION_DETERMINE.
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How can i get number of days between two dates represented by two dates?

how can i get number of days between two dates represented by two date objects. One is java.sql.Date, the other is java.util.Date?

tej_222 wrote:
But how do I do that conversion. from java.sql.date and java.util.date to calender?
-thanks for the quick response.You may find the following utility code samples useful:
[http://balusc.blogspot.com/2007/09/calendarutil.html]
[http://balusc.blogspot.com/2007/09/dateutil.html]
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Hello guys
I have a situation where I have to create a template that returns data, and one of the thing of the existing report is that there is a column that is actually the number of days between start date and end date columns..
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Hi
There is an extension function you can use, from the javadoc:
date_diff
public static long date_diff(java.lang.String format,
java.lang.String fromDate,
java.lang.String toDate,
java.lang.String locStr,
java.lang.String tzID)
Method to get the difference between two dates in the given locale. The dates need to be in "yyyy-MM-dd" format. This function supports only Gregorian calendar.
Parameters:
format - the format to which the difference is required; allowed formats are y (for Year), m(for month), w(for week), d(for day), h(for hour), mi(for minute), s(for seconds) and ms(for milliseconds)
fromDate - the first date
toDate - the second date
locStr - locale string -> lang-Territory
tzID - timezone ID ->http://java.sun.com/j2se/1.4.2/docs/api/java/util/TimeZone.html
Returns:
the difference in dates in the desired format
For example
<?xdoxslt:date_diff(‘d’,’2009-09-14’, ‘2009-09-20’,’en-US’,1)?>
give a result of 6
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Number of days between two dates

I have two dates-String Date1, String Date2(format of both the dates is 'DD-MM-YY'eg;'28-Jan-2008'). I want to find the difference between these dates;ie if value of String Date1 is '28-Jan-2008' and value of String Date2 is '28-Jan-2009', I need to find the number of days between these dates. What need to be done? Can anyone help me out please.
Thanks in advance for all the help.
Regards,
Anees

Doing a search is a bit ineffiecient. I'd take advantage of the fact that dates are acually stored in milliseconds. Subtract the two millisecond values (Data.getTime()) and divide by the number of milliseconds in a day. One complication, though, is daylight saving time but if you round rather than truncate in the division it should be fine.
private static final long MILLIS_PER_DAY = 24L * 60L * 60L * 1000L;
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Number of occurences between two dates based on a starting date + frequence

I have a starting date in cell A1 and a frequency (in days) in cell B1. In cell C1 I have a date (begin) and in cell C4 I have a later date (end). I need to know how often the event occurs during the time between begin and end dates (inclusive).
For instance, the starting date is january 25th, the frequency is 5. The first date is januari 25th, the second date is februari 12th. The result should be 2 (because given the starting date and frequency of the event, it will occur in februari on day 4 and 9).
I have been looking at some of the statistical functions, but I don't think there is a function for this. Right now I have about 5 formulas to calculate intermediate results, but I'm stuck trying to combine them.
I would be happy with just a pointer in the right direction. For instance, is there a specific name for this kind of calculation?

michielvoo wrote:
I have a starting date in cell A1 and a frequency (in days) in cell B1. In cell C1 I have a date (begin) and in cell C4 I have a later date (end). I need to know how often the event occurs during the time between begin and end dates (inclusive).
For instance, the starting date is january 25th, the frequency is 5. The first date is januari 25th, the second date is februari 12th. The result should be 2 (because given the starting date and frequency of the event, it will occur in februari on day 4 and 9).
If the event occurs every five days, the second date will be January 30, and the event will occur four times " during the time between begin and end dates (inclusive)"
I have been looking at some of the statistical functions, but I don't think there is a function for this. Right now I have about 5 formulas to calculate intermediate results, but I'm stuck trying to combine them.
It's not really a statistical calculation, but a simple division to find "How many whole sets of five (days) are there in the days between two dates."
I would be happy with just a pointer in the right direction. For instance, is there a specific name for this kind of calculation?
Two functions and one operation are needed:
DATEDIF() to calculate the number of days between the start and end dates.
Division to determine how many sets of five days there are in that period.
INT() to discard the fractional part of the result.
With the values located as described, this formula (placed in a cell on the same table) will return the number of occurrences not including the first one.
=INT(DATEDIF(C1,C4,"D")/B1)
To include the Start date as one of the occurrences, make this modification:
=INT(DATEDIF(C1,C4,"D")/B1)+1
Regards,
Barry

SQL to count the number of days between two dates

Does any one have or know how to count the number of days/weeks between 2 dates.
I have thought about using MONTHS_BETWEEN, but do not know how to make it accurate down to one day?
Any suggestions would be appreciated.

here are the different queries I came up with to do this, you may want to check it for perticular cases involving Sun and Sat as start and end dates.
select to_number(to_char(to_date('21-JUL-00','dd-mon-yy'), 'ww'))
- to_number(to_char(to_date('10-JUL-00','dd-mon-yy'), 'ww')) from dual;
select (Next_Day(to_date('21-JUL-00','dd-mon-yy')-1, 'Sunday')
- Next_Day(to_date('10-JUL-00','dd-mon-yy')-1, 'Sunday'))/7 from dual;
select (Next_Day(to_date('21-JUL-00','dd-mon-yy')-6, 'Sunday')
- Next_Day(to_date('10-JUL-00','dd-mon-yy')-6, 'Sunday'))/7 from dual;
null

Determine number of weekdays between two dates

I have LiveCycle 8.0 ... I have a form with two date fields called "FirstDayOff" and "LastDayOff". I want to determine the number of weekdays between those two dates and then convert to number of workday hours (based on an 8 hour day) ... I am using this for a "time off" request sheet for my company ...
Also, can I use Formcalc to automatically give me the previous weekday to "FirstDayOff"
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I have LiveCycle 8.0 ... I have a form with two date fields called "FirstDayOff" and "LastDayOff". I want to determine the number of weekdays between those two dates and then convert to number of workday hours (based on an 8 hour day) ... I am using this for a "time off" request sheet for my company ...
Also, can I use Formcalc to automatically give me the previous weekday to "FirstDayOff"
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How to calculate number of sundays and saturdays between two Dates

friends i want to calculate how many Sundays come in two Dates
i have tried following code which is hard coded i have to impliment method which can give me number of Sundays between two Dates
please help me
import java.util.Date;
     import java.text.DateFormat;
     import java.text.SimpleDateFormat;
     import java.util.Calendar ;
     import java.util.GregorianCalendar;
public class DateDiffCalculator     {
     private static final SimpleDateFormat SDF = new SimpleDateFormat("yyyy-MMM-dd");
public DateDiffCalculator()     {
     public static Date getDate (String date) throws Exception {
//log.debug(" "+date);
          return SDF.parse(date);
public static Date getDate (Date date) throws Exception {
// log.debug("date is "+date);
          return getDate(SDF.format(date));
public static long getDiffInDays(Date d1,Date d2)     {
     boolean isdiffGreaterThanYear=false;
     long diffInMilliSeconds=d1.getTime()-d2.getTime();
     return diffInMilliSeconds/(1000*60*60*24);
public static int getYear(String date)     {
          //String[] day=     {Sun,Mon,Tue,Wed,Thu,Fri,Sat};
          Integer     year=new     Integer(date.substring(0,4));
     return year.intValue();
public static int getMonth(String date)     {
          //String date.substring(5,7);
          System.out.println(" "+date.substring(5,8));
          String     m= date.substring(5,8);
          int month=0;
          if(m.equalsIgnoreCase("Jan"))     {
          month=1;
          if(m.equalsIgnoreCase("Feb"))     {
          month=2;
          if(m.equalsIgnoreCase("Mar"))     {
          month=3;
          if(m.equalsIgnoreCase("Apr"))     {
          month=4;
          if(m.equalsIgnoreCase("May"))     {
          month=5;
          if(m.equalsIgnoreCase("Jun"))     {
          month=6;
          if(m.equalsIgnoreCase("Jul"))     {
          month=7;
          if(m.equalsIgnoreCase("Aug"))     {
          month=8;
          if(m.equalsIgnoreCase("Sep"))     {
          month=9;
          if(m.equalsIgnoreCase("Oct"))     {
          month=10;
          if(m.equalsIgnoreCase("Nov"))     {
          month=11;
          if(m.equalsIgnoreCase("Dec"))     {
          month=12;
          return month;
     public static int getDay(String date)     {
          Integer     day=new     Integer(date.substring(9,11));
     return day.intValue();
public static int getNumberofSundays(String d1,String d2) throws Exception     {
          //d1 is leave start date d2 is leave end date
          // get object in Date form
               Date date1=getDate(d1);
               Date date2=getDate(d2);
          // now get calender objects from it
          GregorianCalendar c1= new GregorianCalendar(getYear(d1),getMonth(d1),getDay(d1));
          GregorianCalendar c2= new GregorianCalendar(getYear(d2),getMonth(d2),getDay(d2));
          // get period
          long leavePeriod = getDiffInDays(date1,date2);
     return 12; // it should return number of sundays but we type 12 to perform compilation
public static void main(String[] arg)throws Exception     {
System.out.println(" "+getNumberofSundays("2005-Oct-07","2006-Mar-01"));
}

thanks now i have modified the get Month Code
as follows
public static int getMonth(String date)     {
          //String date.substring(5,7);
          System.out.println(" "+date.substring(5,8));
          String     m= date.substring(5,8);
          int month=0;
          if(m.equalsIgnoreCase("Jan"))     {
          month=0;
          if(m.equalsIgnoreCase("Feb"))     {
          month=1;
          if(m.equalsIgnoreCase("Mar"))     {
          month=2;
          if(m.equalsIgnoreCase("Apr"))     {
          month=3;
          if(m.equalsIgnoreCase("May"))     {
          month=4;
          if(m.equalsIgnoreCase("Jun"))     {
          month=5;
          if(m.equalsIgnoreCase("Jul"))     {
          month=6;
          if(m.equalsIgnoreCase("Aug"))     {
          month=7;
          if(m.equalsIgnoreCase("Sep"))     {
          month=8;
          if(m.equalsIgnoreCase("Oct"))     {
          month=9;
          if(m.equalsIgnoreCase("Nov"))     {
          month=10;
          if(m.equalsIgnoreCase("Dec"))     {
          month=11;
          return month;
but question remains same how to calculate number of Sundays Between 2 Dates

Number weeks between two dates which are in same year or different year

Hi,
how to calculate the number of weeks between two dates?
eg. '17-mar-2013' and '27-jun-2013' or '15-jun-2013' and '25-mar-2014'
Thanks in advance.
lukx

A not tested "integer arithmetic" example (to be adjusted to your conceptions if feasible) covering only both dates in the same year and dates in successive years examples.
consider Setting Up a Globalization Support Environment
select case when substr(:start_date,1,4) = substr(:end_date,1,4)
            then to_number(to_char(to_date(:end_date,'yyyymmdd'),'iw')) -
                 to_number(to_char(to_date(:start_date,'yyyymmdd'),'iw'))
            when to_number(substr(:end_date,1,4)) - to_number(substr(:start_date,1,4)) = 1
            then to_number(to_char(trunc(to_date(:end_date,'yyyymmdd'),'yyyy') - 1,'iw')) -
                 to_number(to_char(to_date(:start_date,'yyyymmdd'),'iw')) +
                 to_number(to_char(to_date(:end_date,'yyyymmdd'),'iw')) + 1
       end iso_weeks_between
from dual
Regards
Etbin
the following seems to work for iso weeks treated as buckets
with
t as
(select date '2013-03-17' d1,date '2013-06-17' d2 from dual union all
select date '2003-12-31',date '2004-01-01' from dual union all
select date '2004-12-31',date '2005-01-01' from dual union all
select date '2005-12-31',date '2006-01-01' from dual union all
select date '2013-12-29',date '2013-12-30' from dual union all
select date '2016-01-03',date '2016-01-04' from dual union all
select date '2013-06-15',date '2014-03-25' from dual
select d1,
       to_number(to_char(d1,'iw')) low_iso_week,
       d2,
       to_number(to_char(d2,'iw')) high_iso_week,
       to_number(to_char(d2,'iw')) - to_number(to_char(d1,'iw')) iso_week_diff,
       case when to_number(to_char(d2,'iw')) - to_number(to_char(d1,'iw')) < 0
            then to_number(to_char(d2,'iw')) - to_number(to_char(d1,'iw')) +
                 case when to_char(trunc(d2,'yyyy'),'iw') = '01'
                      then 52
                      else to_number(to_char(trunc(d2,'yyyy'),'iw'))
                 end
            else to_number(to_char(d2,'iw')) - to_number(to_char(d1,'iw'))
       end iso_weeks_apart
from t
Message was edited by: Etbin
with no Database at hand pencil and paper is too error prone to figure out iso week changes for varioud december - january periods

Number of sundays between two dates

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