compute date difference

A TimeSpan structure represents a time interval.Namespaces: SystemAssembly: mscorlib (in mscorlib.dll)The 1.DateTime value type represents a specific date time from January 1, 01 0:0 0 seconds to the December 31, 9999 23:59 59 seconds. Therefore,

DATEDIFF function [date and time]FunctionReturns the interval between two dates.GrammarDATEDIFF (Date-part, date-expression-1, date-expression-2)Date-part:Year | Quarter | Month | Week | Day | Hour | Minute | Second | MillisecondParametersDATE-PART

During website development, we often need to process the date and time. in PHP, many date and time functions are provided to facilitate PHP developers to calculate and convert the date and time formats. Therefore, it is necessary to master the PHP

This example describes how to convert the date format of the PHP date function. During website development, we often need to process the date and time. in PHP, many date and time functions are provided to facilitate PHP developers to calculate and

So far, PHP date function date formatting characters and descriptions of some PHPUnix timestamp functions as well as conversion and formatting of each other's output instances have been completed, this is essential for understanding the calculation

For example: It is 2004-03-26 13:31:40 the past is: 2004-01-02 11:30:24 I now want to get two date difference, the form of the difference is: xx days xx hours xx minutes xx secondsMethod One: DateFormat df = new SimpleDateFormat ("Yyyy-mm-dd

During website development, we often need to process the date and time. In PHP, many date and time functions are provided to facilitate PHP developers to calculate and convert the date and time formats. Therefore, it is necessary to master the PHP

For example: it's 2004-03-26 13:31:40Last was: 2004-01-02 11:30:24I now want to get two date difference, the form of difference is: xx days xx hours xx minutes xx secondsMethod One:1DateFormat DF =NewSimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"); 2 Try 3

Create Databasexue1Go--Create a database Usexue1Go--referencing a databaseCreate TableXinxi (Codeint, namevarchar( -), Xuehaodecimal(Ten), Brithdaydecimal(Ten),)--Create an information tableInsert intoXinxiValues(1,'Zhang San',2016042701, .-4-

MySQL calculates the time difference function for two dates: TimestampdiffGrammar:Timestampdiff (interval, DATETIME_EXPR1, DATETIME_EXPR2)interval Value:  SECOND sec  MINUTE minHOUR hoursDay daysMONTH Month Year years DescriptionReturns an