Date and Time functionsThis chapter discusses some functions that can be used to manipulate time values. See section 11.3, "Date and Time type" for valid formats for each time and date type with a range and a specified value.
The following example
The Ext.date is a single example that encapsulates a series of date manipulation functions, extending the functionality of JavaScript date, and lists some of the common features listed below. Basic functions:
The
Ext.Date.add (date,
/** Date Parsing, string to date * @param datestring can return the corresponding Date object for 2017-02-16,2017/02/16,2017.02.16 * @returns {date} */ functionDateparse (datestring) {varSeparator_bar = "-"; varSeparator_slash = "/";
MySQL
For the value range of each type and the valid format of the specified date 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 3
Select DateDiff( Year, start date, end date);--Two date interval yearSelect DateDiff(Quarter, Start date, end date);--Two date interval seasonSelect DateDiff(Month, start date, end date);--Two date interval monthSelect DateDiff( Day, start date, end
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.
NTERVALYEARTOMONTH Oracle Syntax: INTERVALinteger [-integer] {YEAR | MONTH} [(precision)] [TO {YEAR | MONTH}] This data type is often used TO indicate a time difference, note that the time difference is accurate only to the year and month. precision
Local Test Cases:
# there can be no spaces on either side of the equal sign, before the error has been out here
yesterday= ' date-d last-day +%y-%m-%d '
echo $yesterday
curday= ' Date +%y-%m-%d '
echo $curday
echo "Now time: ' Date ' +%y%m%d%T '"
JSON date to JS date, we know that after the date type is converted to JSON, the returned data looks like this:
/date (1379944571737)/
But this date does not appear directly, because no one knows what it means, and here's a way to turn the JSON
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