File name: date.inc.php3
Before using these two functions, convert the date or datetime to the timestamp type.
Such as:
$today =mktime (0,0,0,date ("M"), Date ("D"), Date ("Y"));
/**** simulation of DATEADD functions in SQL Server *******
$part Type: string
Value range: year,month,day,hour,min,sec
Indicates: Which part of the date to increase
$n Type: Numeric
Indicate: How much to increase, according to $part decide which part to add
Can be a negativ
// 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
server|sqlserver| function//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"), Date ("Y"));
/**** simulate the DATEADD function in SQL Server *******
$part Type: string
Value range: year,month,day,hour,min,sec
Which part of the date to increase
$n Type: Numeric value
said: To increase how much, according to $part decide w
DateAdd function usage in ASP
2006/09/22 12:29
Note that the VBS and SQL are slightly different, and the following posts are for the VBS help.
SQL searchable SQL self-help document
A string expression that represents the time interval to add. For numeric values, see the "Settings" section.
Returns the date that the specified time interval has been added.
DATEADD (interval, number, date)
Parameters
I
DATEADD function
Returns the date that the specified time interval has been added.
DateAdd(interval, number, date)
Parameters
Interval
Required option. A string expression that represents the time interval to add. For numeric values, see the "Settings" section.
Number
Required option. Numeric expression that represents the number of time intervals to add. Numeric expressions can be positive (get future date
First, paste the javascript code I wrote. You can refer to it later.
The Code is as follows:
Date. prototype. dateAdd = function (interval, number){Var d = this;Var k = {'y': 'fullyear ', 'q': 'month', 'M': 'month', 'w': 'date', 'D ': 'date', 'H': 'urs', 'N': 'minutes ', 's': 'seconds', 'ms': 'milliseconds '};Var n = {'q': 3, 'w': 7 };Eval ('d. set '+ k [interval] +' (d. get '+ k [interval] +' () + '+ (n [interval] | 1) * number) + ')');Return d;}Da
File name: date. inc. php3 before using these two functions, you must first convert the date or date to the timestamp type. For example: $ todaymktime (0, 0, 0, date (m), date (d), date (Y )); * *** simulate the dateadd function in sqlserver ******* $ part Type: string value range: year, month, day, hour, min, sec: SQL Server
// File name: date. inc. php3
// Before using these two functions, convert the date or date to the timestamp type.
// For examp
Processing date in JS is relatively junk. The following functions may help you better process the date in Js.Including dateadd, datediff, and current date
Current dateVaR d = new date ();VaR theday = D. getyear () + "-" + (D. getmonth (). tostring (). length> 1 )? (D. getmonth () + 1): "0" + (D. getmonth () + 1) + "-" + (D. getdate (). tostring (). length> 1 )? D. getdate (): "0" + D. getdate ());
Dateadd
Paste the Javascript I wrote first
Code For more information, see.
/* Get the date after the date, month, day, and other plus numbers */
Date. Prototype. dateadd = function (interval, number)
{
VaR d = this;
VaR K = {'y': 'fullyear ',
'Q': 'month ',
'M': 'month ',
'W': 'date ',
'D': 'date ',
'H': 'urs ',
'N': 'minutes ',
'S ': 'seconds ',
'Ms': 'milliseconds '};
VaR n = {'q': 3,
'W': 7 };
Eval ('d. set '+ k [interval] +' (D. get '+ k [i
Simulate two SQL server functions: dateadd () and datediff ().? Php file name: date. inc. php3 before using these two functions, you must first convert the date or date to the timestamp type. For example: $ todaymktime (0, 0, 0, date (m), date (d), date (Y ));
// 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
Definition and usage
The DATEADD () function adds or removes the specified time interval in the date.Syntax
DATEADD(datepart,number,date)
DateA parameter is a valid date expression.NumberIs the number of intervals you want to add. For the future time, this number is a positive number, and for the past time, this number is a negative number.
DatepartParameters can be the following values:
Datepart
DateAdd Function
Returns the date of the specified interval.
DateAdd(interval, number, date)Parameters
Interval
Required. String expression, indicating the time interval to be added. For values, see the "Settings" section.
Number
Required. Numeric expression, indicating the number of time intervals to be added. A numeric expression can be a positive number (to get the future date) or a negative number (to g
The date and time functions in SQL Server are always problematic in this regard. So, I will summarize what I mainly useDatepart(Month, getdate (). This item can be set to day (now () in access. Unfortunately, the day () in SQL Server does not support parameters.Date and time functions in SQL Server
These scalar functions operate on the input values of date and time, and return a string, numeric value, or Date and Time Value.
The following table lists Date and Time Functions and Their determinist
', ' two ', ' three ', ' four ', ' five ', ' six ']; switch (interval) {case ' Y ':p artstr = Mydate.getfullyear (); Case ' m ':p artstr = Mydate.getmonth () +1;break; Case ' d ':p artstr = Mydate.getdate (); Case ' W ':p artstr = Week[mydate.getday ()];break; Case ' ww ':p artstr = Mydate.weeknumofyear (); Case ' h ':p artstr = mydate.gethours (); Case ' n ':p artstr = Mydate.getminutes (); Case ' s ':p artstr = Mydate.getseconds (); return partstr; } //+---------------------------------------
Definition and usageThe DATEADD () function adds or subtracts a specified time interval from a date.GrammarDATEADD (datepart,number, date) The date parameter is a valid day expression. The number is the number of intervals you want to add, and for the future time, this is positive, and for the past time, this number is negative.The datepart parameter can be the following value:
DatePart
Abbreviations
Years (year)
DateAdd function:Copy codeThe Code is as follows: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 () +
// File name: date. inc. php3 // before using these two functions, convert the date or date to the timestamp type. // For example: // $ todaymktime (0, 0, 0, date (m), date (d), date (Y )); /***** simulate the dateadd function in sqlserver ******* $ part Type: string value range: y EN "" http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
Date. inc. php3: two functions used to simulate SQLSERVER: dateadd
Address: http://www.wlm.so/Article/Detail/lmb49q5hxpqyi00000
I just searched for datediff in C # on Baidu. I was shocked to see that C # didn't have this function.
There are also various user-defined functions.In desperation, write a datetime variable by yourself. Look at it, yo, there are adddays or something. This is not an issue.C # There are such perfect adddays, addmonths and other functions. What else do I need dateadd or something.After testi
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