Tutorial by Examples: date

Date time formatting, according to the localization. const usDateTimeFormatting = new Intl.DateTimeFormat('en-US'); const esDateTimeFormatting = new Intl.DateTimeFormat('es-ES'); const usDate = usDateTimeFormatting.format(new Date('2016-07-21')); // "7/21/2016" const esDate = esDateT...

The most feasible way is to use, the DateTime class. An example: <?php // Create a date time object, which has the value of ~ two years ago $twoYearsAgo = new DateTime("2014-01-18 20:05:56"); // Create a date time object, which has the value of ~ now $now = new DateTime("2016...

The DATEDIF function returns the difference between two date values, based on the interval specified. It is provided for compatibility with Lotus 1-2-3. The DATEDIF function cannot be found on the function list and autocomplete and screen tips are unavailable. Note: It is pronounced "date diff&...

This hook is called after pre-receive, and it works the same way. It's called before anything is actually updated, but is called separately for each ref that was pushed rather than all of the refs at once. This hook accepts the following 3 arguments: name of the ref being updated, old object na...

Validates a value is a valid IP address var_dump(filter_var('185.158.24.24', FILTER_VALIDATE_IP)); var_dump(filter_var('2001:0db8:0a0b:12f0:0000:0000:0000:0001', FILTER_VALIDATE_IP)); var_dump(filter_var('192.168.0.1', FILTER_VALIDATE_IP)); var_dump(filter_var('127.0.0.1', FILTER_VALIDATE_IP)); ...

xml of the Dialog: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="mat...

To add/subtract time, use POSIXct, since it stores times in seconds ## adding/subtracting times - 60 seconds as.POSIXct("2016-01-01") + 60 # [1] "2016-01-01 00:01:00 AEDT" ## adding 3 hours, 14 minutes, 15 seconds as.POSIXct("2016-01-01") + ( (3 * 60 * 60) + (14 ...

There are many cases when one has created an NSDate from only an hour and minute format, i.e: 08:12 that returns from a server as a String and you initiate an NSDate instance by these values only. The downside for this situation is that your NSDate is almost completely "naked" and what yo...

Let's say you have a User model class User < ActiveRecord::Base end Now to update the first_name and last_name of a user with id = 1, you can write the following code. user = User.find(1) user.update(first_name: 'Kashif', last_name: 'Liaqat') Calling update will attempt to update the gi...

Example for date or time range.

The angular.isDate function returns true if and only if the object passed to it is of the type Date. angular.isDate(value) Examples angular.isDate("lone star") // false angular.isDate(new Date()) // true

java.util.Date to java.sql.Date conversion is usually necessary when a Date object needs to be written in a database. java.sql.Date is a wrapper around millisecond value and is used by JDBC to identify an SQL DATE type In the below example, we use the java.util.Date() constructor, that creates a D...

You update all rows in table by simply providing a column_name = value: UPDATE person SET planet = 'Earth';

UPDATE person SET state = 'NY' WHERE city = 'New York';

Sometimes one wants to capture the records that have just been updated. CREATE TABLE #TempUpdated(ID INT) Update TableName SET Col1 = 42 OUTPUT inserted.ID INTO #TempUpdated WHERE Id > 50

DECLARE @DateFrom DATETIME = '2016-06-01 06:00' DECLARE @DateTo DATETIME = '2016-07-01 06:00' DECLARE @IntervalDays INT = 7 -- Transition Sequence = Rest & Relax into Day Shift into Night Shift -- RR (Rest & Relax) = 1 -- DS (Day Shift) = 2 -- NS (Night Shift) = 3 ;WITH roster AS ...

NOW() + INTERVAL 1 DAY -- This time tomorrow CURDATE() - INTERVAL 4 DAY -- Midnight 4 mornings ago Show the mysql questions stored that were asked 3 to 10 hours ago (180 to 600 minutes ago): SELECT qId,askDate,minuteDiff FROM ( SELECT qId,askDate, TIMESTAMPDIFF(MINUTE,askDate,no...

Consider a production table called questions_mysql and a table iwtQuestions (imported worktable) representing the last batch of imported CSV data from a LOAD DATA INFILE. The worktable is truncated before the import, the data is imported, and that process is not shown here. Update our production da...

UPDATE HelloWorlds SET HelloWorld = 'HELLO WORLD!!!' WHERE Id = 5 The above code updates the value of the field "HelloWorld" with "HELLO WORLD!!!" for the record where "Id = 5" in HelloWorlds table. Note: In an update statement, It is advised to use a "where&...

A simple form of updating is incrementing all the values in a given field of the table. In order to do so, we need to define the field and the increment value The following is an example that increments the Score field by 1 (in all rows): UPDATE Scores SET score = score + 1 This can be dang...