How to calculate the day of the week?Slowtiger published on 2009-11-19 08:42:00How to calculate the day of the week?--Caille (Zeller) formulaWhat is the day of the week in history? What day of the future is the week? With regard to this problem,
1 ORACLE mid-week related knowledge description 1.1 Date formatting functions To_char (X [,FORMAT]) : Press X toFORMATThe format is converted into a string. X is a date,FORMATis a format string that specifies the format in which X is
--Caille (Zeller) formulaWhat is the day of the week in history? What day of the future is the week? With regard to this problem, there are many computational formulae (two general formulas and some piecewise formulas), the most notable of which is
Obtain the date of a week based on a week of a year. For example, if the start date is set to "Thursday" to "Friday" of the next week, you can refer to the following requirements when getting the JS date: Obtain the date of the week based on a week
Obtain the date range of the week based on the time range of the week.Obtain the date range of the week according to the week
/*** Return the range of Weekly Times of a month in a certain year * @ param weeks Weekly Times * @ return the range of
First, use your formula to compile a simple program:
Main ()
{Int year;/* year */
Intw;/* day of the week */
Scanf ("% d", & year );
W = (year-1) + (year-1)/4-(year-1)/100 + (year-1)/400 + 1) % 7;
Printf ("% d \ n", W );
Getch ();
}
Enter 1 during
Transferred from: http://www.cnblogs.com/likwo/archive/2010/04/16/1713282.htmlQuery Day:SELECT * FROM table where to_days (column_time) = To_days (now ());SELECT * FROM table where date (column_time) = Curdate ();Query one week:SELECT * FROM table
When JS obtains a date, it encounters the following requirement: Obtain the date of a week based on a week of a year. For example, the start date must be from Thursday to Friday of the next week.
The Code is as follows:
Function getNowFormatDate
Query Day:Select * from Table where = To_days (now ()); Select * from Table where =Query one week:Select * from Table where 7 Day Date (column_time);Query one months:Select * from Table where 1 MONTH Date (column_time);MySQL date and time
Obtain the date range of the week according to the weekObtain the date range of the week according to the week
/*** Return the range of Weekly Times of a month in a certain year * @ param weeks Weekly Times * @ return the range of dates of the
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