javascript date functions

(time)Returns the minute of time, ranging from 0 to 59.Mysql> select MINUTE (@ #98-02-03 10:05:03 @#);-> 5SECOND (time)The number of seconds for the return time, ranging from 0 to 59.Mysql> select SECOND (@#10:05:03 @#);-> 3PERIOD_ADD (P, N)Add N months to phase P (in the format of YYMM or YYYYMM ). Return Value in the format of YYYYMM. Note that the phase parameter P is not a date value.Mysql> select PERIOD_ADD (9801,2 );-> 199803PERIOD_DIFF (P1, P2

from 0 to 59.Mysql> select second ('10: 05: 03 ');-> 3 Period_add (p, n)Add n months to phase P (in the format of yymm or yyyymm ). Return Value in the format of yyyymm. Note that the phase parameter P is not a date value.Mysql> select period_add (9801,2 );-> 199803 Period_diff (P1, P2)Returns the number of months between period P1 and P2. P1 and P2 should be in the format of yymm or yyyymm. Note that the period parameters P1 and P2 are not

)Returns the minute of time, ranging from 0 to 59.Mysql> select minute ('98-02-03 10:05:03 ');-> 5 Second (time)The number of seconds for the return time, ranging from 0 to 59.Mysql> select second ('10: 05: 03 ');-> 3 Period_add (p, n)Add n months to phase P (in the format of yymm or yyyymm ). Return Value in the format of yyyymm. Note that the phase parameter P is not a date value.Mysql> select period_add (9801,2 );-> 199803 Period_diff (P1, P2)

10:05:03 );-> 5 Second (time)The number of seconds for the return time, ranging from 0 to 59.Mysql> select second (10:05:03 );-> 3 Period_add (p, n)Add n months to phase P (in the format of yymm or yyyymm ). Return Value in the format of yyyymm. Note that the phase parameter P is not a date value.Mysql> select period_add (9801,2 );-> 199803 Period_diff (P1, P2)Returns the number of months between period P1 and P2. P1 and P2 should be in the format of

+ Number is borrowed in days or days in smaller units, such as 1 for 1 days, 1/24 for 1 hours, and 1/24/60 for 1 minutes "example" Selecttrunc (sysdate) + (interval ' 1 ' second),--plus 1 seconds (1/24/60/60 ) trunc (sysdate) + (interval ' 1 ' minute),--plus 1 minutes (1/24/60) trunc (sysdate) + (interval ' 1 ' hour),--Add 1 hours (1/24) trunc (sysdate) + (INTERVAL ' 1 ' Day), --plus 1 days (1) trunc (sysdate) + (INTERVAL ' 1 ' MONTH),--plus January trunc (sysdate) + (INTERVAL ' 1 ' year),-- P

Date and time functions in SQL Server 1. Current system date, time Select GETDATE () 2. DateAdd returns a new datetime value on the basis of adding a period of time to the specified date For example: Add 2 days to date Select DATEADD (day,2, ' 2004-10-15 ')--back: 2004-1

The date () function is a date function that we often encounter in php development and will use. Next I will introduce some basic la S and methods of the date () function, for more information, see The date () function is a date function that we often encounter in php develo

ES5, ECMAScript 5.1, adds a lot of new features on top of the JavaScript language to enhance and standardize existing objects and statements, including some new functions, object type enhancements, and strict schema programming specifications.Today we will introduce the following new functions:Array.isarray (obj);Array.prototype.forEach ();Array.prototype.indexOf ();Array.prototype.lastIndexOf ();Array.prot

For details about the date () date and Time Functions in php, refer. For details about the date () date and Time Functions in php, refer. 1, year-month-day Echo date ('Y-m-J '); 20

Convert MySQL datetime functions to bitsCN.com For the description of the valid format of the value range of each type and the specified date and time value, see 7.3.6 date and time type.Here is an example of using the date function. The following query selects all records. The value of date_col is within the last 30 d

Processing dates in PHP is very inconvenient, such as asking for a difference between the two dates of the month? What should we do? FileName: date.inc.php3 Before you use these two functions, you must first convert the date or datetime to the timestamp type. Such as: $today =mktime (0,0,0,date ("M"), Date ("D"),

This article describes how to implement the strtotime () and date () functions in php in js imitation. it involves related techniques related to javascript time operations and is of great practical value, for more information about how to use js to simulate strtotime () and date ()

. getMonthNum () Cal. setMonthNum (12 ); Cal. year --; } Cal. reflesh (); } Document. getElementById ("cal_next"). onclick = function (){ Cal. monthNum ++ If (cal. getMonthNum ()> 12 ){ Cal. setMonthNum (1 ); Cal. year ++; } Cal. reflesh (); } Document. getElementById ("cal_today"). onclick = function (){ Cal. setYearNum (new Date). getFullYear ()); Cal. setMonthNum (new Date). getMonth () +

, MySQL returns 0 if you do not use 2 or 3 as an optional parameter:Mysql> Select Year ('2014-01-01 '), Week ('2014-01-01', 0 );-> 2000, 0Mysql> select Week ('2017-01-01 ', 2 );-> 52 You may argue that when the given date value is actually part of Week 1999 of 52nd, MySQL should return 52 for the week () function. We decided to return 0 because we wanted the function to return "the week in the specified year ". This makes the use of week () function

Summary of MySQL date and time functions bitsCN.com Mysql database date and time functions, mysql function Daquan, summary record, for later use. DAYOFWEEK (date)The return date is the day of the week (1 = Sunday, 2 = Monday ,....

--Date related functions--1.day (Date_time), returns an integer that represents the day in the datepart of the specified date. Month (date_time), year (date_time) similarSELECT Day (GETDATE ())--returns 23--2.datepart (Datepart,date) that returns the part of a type datetime, smalldatetime,

Preliminary Exploration of javascript Functions (II): Preliminary Exploration of javascript Functions JavascriptPredefined functions: The javascript engine has a set of built-in functions