Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
An input.the valueAsDate method returns a Date object reflecting the input's current value. The displayed value follows the same format. To make it work:new Date().toISOString().substr( 0, 10 ); new Date().toLocaleDateString(); input.valueAsDate; input.valueAsDate.toLocaleDateString(); new Date( input.valueAsDate ); new Date( input.valueAsDate ).toISOString().substr( 0, 10 );
In MySQL, we can simply specify the SELECT conditions all alone to get the self-computed output. Following example will demonstrate it −mysql> Select 1+1; +-----+ | 1+1 | +-----+ | 2 | +-----+ 1 row in set (0.02 sec) mysql> Select 1; +---+ | 1 | +---+ | 1 | +---+ 1 row in set (0.00 sec)
To fire dragstart after mousemove, try the following:If you are firing dragstart event, then implement the rest of the process flow as well:To solve the problem, create the user experience as follows: You need to instruct the user to click on the respective area for enabling drag When a user clicks on the area, a dialog should be visible to show that the dragging may now be used.
To solve the Uncaught Security Exception, you need to add the crossorigin attribute: function getBase64() { var myImg = document.getElementById("myid"); var c = document.createElement("canvas"); c.width = myImg.width; c.height = myImg.width; var context = c.getContext("2d"); context.drawImage(img, 0, 0); var dataURL = c.toDataURL("image/png"); alert(dataURL.replace(/^data:image\/(png|jpg);base64,/, "")); } getBase64();
While inserting the values in a row, we can use the value of self-computed output from any expression, function etc. Here is an example to demonstrate it −mysql> Insert into employee(id, emp_name)Select 1+1, Concat_ws(' ','Gaurav', 'Kumar'); Query OK, 1 row affected (0.04 sec) Records: 1 Duplicates: 0 Warnings: 0 mysql> Select * from employee; +------+--------------+ | id | emp_name | +------+--------------+ | 2 | Gaurav Kumar | +------+--------------+ 1 row in set (0.00 sec)
CTAS i.e. “Create Table AS Select” script is used to create a table from an existing table. It copies the table structure as well as data from the existing table. Consider the following example in which we have created a table named EMP_BACKUP from an already existing table named ‘Employee’mysql> Select * from Employee; +------+--------+ | Id | Name | +------+--------+ | 100 | Ram | | 200 | Gaurav | | 300 | Mohan | +------+--------+ 3 rows in set (0.00 sec)The query above shows the data in table ’Employee’ and the query below ... Read More
With the help of following example we can understand that how we can use MySQL INTERVAL keyword with EXTRACT() function −mysql> Select StudentName, RegDate, EXTRACT(YEAR from RegDate+INTERVAL 2 year) AS 'Two Year Interval' from testing where StudentName = 'Gaurav'; +-------------+---------------------+-------------------+ | StudentName | RegDate | Two Year Interval | +-------------+---------------------+-------------------+ | Gaurav | 2017-10-29 08:48:33 | 2019 | +-------------+---------------------+-------------------+ 1 row in set (0.02 sec)Above query is showing how we can use INTERVAL keyword with EXTRACT() function used in MySQL table query.mysql> Select EXTRACT(Year from '2017-10-22 ... Read More
We can use both the format characters together in DATE_FORMAT() function. The following example will clarify this −mysql> SELECT DATE_FORMAT(NOW(), 'The time is %a %h:%i:%s:%f %p'); +-----------------------------------------------------+ | DATE_FORMAT(NOW(), 'The time is %a %h:%i:%s:%f %p') | +-----------------------------------------------------+ | The time is Sun 06:35:06:000000 AM | +-----------------------------------------------------+ 1 row in set (0.00 sec)Above query is using date format character ‘%a’ along with other time format characters.Following is another example in which both format characters are used together −mysql> SELECT DATE_FORMAT(NOW(), 'The date & time is %a %D %M %Y %h:%i:%s:%f %p'); ... Read More
We can apply EXTRACT() function on the dates stored in MySQL table in the following way −The following query is showing what dates are entered in table ‘testing’mysql> Select * from testing; +-------------+---------------------+ | StudentName | Dateofreg | +-------------+---------------------+ | Ram | 2017-10-28 21:24:24 | | Shyam | 2017-10-28 21:24:30 | | Mohan | 2017-10-28 21:24:47 | | Gaurav | 2017-10-29 08:48:33 | +-------------+---------------------+ 4 rows in set (0.00 sec)Now, we can apply EXTRACT() function, to obtain the value of the year, on ... Read More
The MySQL DateTime instance can be converted into seconds with the help of UNIX_TIMESTAMP() function in the following way −mysql> Select UNIX_TIMESTAMP('2017-05-15 04:05:30') AS 'NUMBER OF SECONDS'; +-------------------+ | NUMBER OF SECONDS | +-------------------+ | 1494801330 | +-------------------+ 1 row in set (0.00 sec)Above query will convert the given datetime instance into total number of seconds.mysql> Select UNIX_TIMESTAMP(NOW()) AS 'NUMBER OF SECONDS'; +-------------------+ | NUMBER OF SECONDS | +-------------------+ | 1509248856 | +-------------------+ 1 row in set (0.00 sec)Above query will convert the current DateTime instance into a total number of seconds.mysql> ... Read More