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Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.
Chrome allows you to store code snippets that you would normally use for debugging purposes. You can store once, and run it on any page in Chrome. These snippets are
For effective usage of variables in loops, it is advised to create variables outside of loops and use them in the loops. This helps save lot of memory and makes
To find duplicates, use a query similar to the following: Select * from TABLE1 a where id ( select max(id) from TABLE1 b where a.Field=b.Field);
account.changePassword(oldPassword, newPassword);Date lastModified = getLastModified();lastModified.setTime(System.currentTimeMillis()); The above code updates the last modified date of the password and wants to avoid creating a new Object, but uses instead the setTime method
SQL Server 2016 provides a way to split a string that is concatenated with a separator. For example: SELECT VALUE FROM STRING_SPLIT(“John|Mary|Dohe”, “|”) would return the values John, Mary and
The command “SHOW GRANTS” will display the privileges that the current user has. Command: SHOW GRANTSSample output:+——————————————————————————————————————+|Grants for dbuser@% |+——————————————————————————————————————+| GRANT ALL PRIVILEGES ON *.* TO ‘dbuser’@’%’ IDENTIFIED BY PASSWORD
DateTimeOffSet values are often converted to strings for display or some other purpose. But these representations often fail when they are used to convert them back to valid date/time values.
Devart has upgraded SQL Complete with the connection to Azure Multi-Factor Authentication, enriched Code Completion and Code Refactoring features as well as many added other productivity functionalities.
Use this nifty function to check the validity of an email address. CREATE FUNCTION [dbo].[fnCheckEmail](@Email VARCHAR(255)) RETURNS BIT AS BEGIN DECLARE @ValidEMail BIT IF @Email IS NOT NULL SET @Email
In this article we’re going to explore Angular 5 up-gradation and Changes that would be encountered during the migration. Take a look at the features that make Angular 5 a great option for your development projects.
Using one class or interface that contains all kinds of constants used during the application may not be the best solution. These constants are unrelated with each other, the only
We have been using logging in Java and different code requires different levels of logging. Hence these Levels will come in handy. Code sample: import java.util.logging.Logger;import java.util.logging.Level;public class JavaLogger{ public
A lot of Excel reporting uses pivot tables and it is necessary to update them with the latest data. The process of updating each and every pivot table via the
At times, you may want to make your application sleep for a determined period pending some other action. This is very easily achieved in Java with threads. Code sample: import
To bypass “the row values updated or deleted either do not make the row unique or alter multiple rows” error message, all you need to do is add a query
Do not assume char represents only one character: “uD83DuDC31”.length() == 2 The escape sequence represents the Unicode code point 0x1F431 in UTF-16 as 2 chars. So even though this is
In Visual Studio 2017, the “attach to process” window has an option that allows you to search and filter for a process. It is a search text box right on
JSON is being widely adapted by the industry for easier transformation of data. Using the json-simple-1.1.1.jar in the classpath will provide you with the basics of JSON and its functionality.
By default, JavaScript script files are loaded synchronously in the page execution and thus are bound to slow down the page. You can asynchronously load the scripts by simply adding
In order to execute a Stored Procedure when SQL Server starts, you first need to enable scanning for Startup Procedures with the following code: EXEC sys.sp_configure N’scan for startup procs’,
In order to execute a Stored Procedure when SQL Server starts, you first need to enable scanning for Startup Procedures with the following code: EXEC sys.sp_configure N’scan for startup procs’,
RandomAccessFile raf = new RandomAccessFile(f, ???r???);for (???) { raf.seek(pos); byte b = raf.readByte();} Despite its name, the java.io.RandomAccessFile class is not very convenient for accessing files in a random-access manner,
Cloning is the easiest way of copying a class. With this, however, you also have all properties being passed on to the cloned class, which probably is a security hassle.
Use the KeyPress event to check for the keys pressed. See below for an example: private void textFirstName_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { if ( !( char.IsLetter(e.KeyChar) ) ) { e.Handled
Collection.removeIf is a very powerful method that acts on a condition. In the code sample below, there is a list which has few elements in it and the condition is
Sometimes when doing a search for data between date ranges, some of the data is omitted because the search doesn’t include the whole last day’s values. Here is a small
These two selectors often confuse beginners. In CSS, the difference between them is that the class is represented by a dot “.”, while ID is represented by a hash “#”.
Angular’s ngPattern allows you to validate input using a pattern. See below for an easy example of how to validate an e-mail address using the ng-pattern.
Most of the time, you probably want to understand the flow to solve certain problems. Java provides an easy approach to knowing the current stack. Code snippet: public class DumpStack{
We use string.format to format the data written to the console using the console.write or console.writeline commands. However, it isn’t indented well to make it readable. C# allows you to
