1. Date Added
DATEADD function
Returns the date that the specified time interval has been added.
DATEADD (interval, number, date)
The syntax for the DATEADD function has the following parameters
(1) Interval required option. A string expression that represents the time interval to add. For numeric values, see the "Settings" section.
(2) Number must be selected.
How to implement the date after several days of the given date (a bit similar to DateAdd in VB ). How to implement date after several days of a given date (a bit similar to DateAdd in VB) * bean curd is made at www.asp888.net bean curd technology site. if it is reprinted, please keep the complete copyright information. how can we achieve the date several days after the given date (somewhat similar to
Syntax
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->DATEADD (datepart , number , date )
SpecifyNumberThe time interval (signed integer) and the specifiedDateSpecifiedDatepartReturnsDate.
Parameters
Datepart
Yes andNumberAddedDate. The following table lists all validDatepartParameters. The user-defined equivalent variable is invalid.
Number
Is an expression that can be parsed into an int th
IamlaosongThe DateAdd function returns a date that is added to a time interval. This function can be used to calculate many of the dates we need, such as last month's year-earlier date. GrammarDATEADD (interval, number, date)The following named parameters are available in the DATEADD function syntax:Interval necessary. The string expression is the time interval to be added. It has a lot of set values, such
This article mainly introduces the code sharing of the DateDiff and DateAdd time functions implemented by php. DateDiff is used to calculate the two time intervals, and DateAdd is used to add the two time periods, for more information about how to extend the time functions DateDiff and DateAdd in php, see.
function DateDiff($part, $begin, $end){$diff = strtotim
This article mainly introduces the code sharing of the DateDiff and DateAdd time functions implemented by php. DateDiff is used to calculate the two time intervals, and DateAdd is used to add the two time periods, for more information about how to extend the time functions DateDiff and DateAdd in php, see.
function DateDiff($part, $begin, $end){$diff = strtotim
InstanceSuppose we have the following "Orders" table:OrderId ProductName OrderDate1 'computer '16:25:46. 635Now, we want to add 2 days to "OrderDate" so that we can find the payment date.We use the following SELECT statement: The code is as follows:Copy code SELECT OrderId, DATEADD (day, 2, OrderDate) AS OrderPayDateFROM Orders Select DateAdd (Month,-3, getdate () -- Returns
How to implement dates after a given date (somewhat similar to the DateAdd in VB)
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These days suddenly a lot of people ask such a question, is how to implement in PHP in VB DateAdd function, hehe! But this is a question.
Originally this problem is tofu to Huawei applied for
The project needs to use the calendar,. NET calendar control is too heavy, had to write with JS, the core function of the calendar is DateAdd (), the writing process found in JS inside operation time than the imagination of tedious, not like VBScript can easily DateAdd, and then think of using setFullYear (), setdate () and other built-in functions, you can flatten a JS version of the
How to implement a number of days after a given date (somewhat like DateAdd in VB)
/*
Tofu production is a boutique
Http://www.asp888.net Tofu Technology Station
If reproduced please retain the full copyright information
*/
These days suddenly a lot of people ask such a question, is how to implement in PHP in VB DateAdd function, hehe! This is a question.
Originally this problem is tofu to apply to Huawei w
DateAdd function:function DateAdd (interval,number,date) {Switch (Interval.tolowercase ()) {Case "Y": Return new Date (Date.setfullyear (Date.getfullyear () +number));Case "M": Return new Date (Date.setmonth (Date.getmonth () +number));Case "D": Return new Date (Date.setdate (Date.getdate () +number));Case "W": Return new Date (Date.setdate (Date.getdate () +7*number));Case "H": Return new Date (Date.sethou
weekWW WeekH hoursM minutess seconds
Response.Write DateAdd ("M", 1,date ())%>Do not understand the words refer to the following:Date ()Function Description: Returns the current system date.Syntax format: Date ()Parameter description: Nonecode example: Date ()return Result: 2004-09-14
DATEADD ()Function Description: Returns a date that has been changed.Syntax format:
SELECT DATEDIFF (year, ' 1992-11-28 ', GETDATE ())--age, where year can be replaced by day MONTHSELECT DATEPART (Month,getdate ())-Returns an integer representing the specified date portion of the specified date. such as 12SELECT datename (WEEKDAY, ' 2014-11-12 ')--Returns the specified day of the week, such as Monday,SELECT Datename (Weekday,getdate ())--Returns the current date is the day of the weekSELECT Datename (Week,getdate ())--Returns the current number of weeks of the year, such as 51E
I. Use the DateAdd method to add a period of time interval to a specified date,
Ii. Code
Using System; using System. collections. generic; using System. componentModel; using System. data; using System. drawing; using System. linq; using System. text; using System. windows. forms; using Microsoft. visualBasic; namespace AddDate {public partial class Frm_Main: Form {public Frm_Main () {InitializeComponent ();} private DateTime G_datetime; // defines th
--Date function--getdate (): Gets the current date--dateadd (interval unit, increment value, source date value): Adds a date value for a specified interval for the specified dateSelect DATEADD (Mm,3,getdate ())Select DATEADD (Mm,-3,getdate ())--datediff (interval unit, start date, end date) Gets the difference value between two datesSelect DATEDIFF (ss, ' 1990-1-
Simulate two SQL server functions: dateadd () and datediff (). read the two functions that simulate SQL Server: dateadd (), datediff (),? Php // File name: date. inc. php3 // before using these two functions, convert the date or date to the timestamp type. // For example: // $ today = mktime (0,
// File name: date. inc. php3
// Before using these two functions, convert the date or date to the timestamp type
1. Date add DateAdd function Returns the date when the specified time interval has been added. The syntax for the DateAdd (interval, number, date) DateAdd function has the following parameters (1) Interval the required option. A string expression that represents the time interval to add. For numeric values, see the "Settings" section. The (2) number must
// File name: Date. Inc. php3// Before using these two functions, convert the date or date to the timestamp type.// For example:// $ Today = mktime (0, 0, 0, date ("M"), date ("D"), date ("Y "));/***** Simulate the dateadd function in sqlserver *******$ Part type: StringValue Range: year, month, day, hour, Min, SecIndicates the part of the date to be added.$ N type: ValueIndicates the amount to be added. You can decide which part to add based on $ par
1. Syntax:
Dateadd (datepart, number, date)2. Parameters
Datepart
Yes andIntegerThe date part of the Number Addition. The following table lists all valid datepart parameters. The user-defined equivalent variable is invalid.
Datepart
Abbreviations
Year
YY,Yyyy
Quarter
Qq,Q
Month
Mm,M
Dayofyear
Dateadd
Returns the newDatetimeValue.Syntax
Dateadd( Datepart, Number, Date)Parameters
Example of deleting data a week ago: Select * From lgh_log where fact_date
ExploitationDateadd can automatically delete data for a period of time.
You can create a task, back up the task, and delete some of the content in the following task.
-- Deletes data from a week before the current time.
Begin transactionD
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