Memory leak in CS

A memory leak, in computer science (or leakage, in this context), occurs when a computer program consumes memory but is unable to release it back to the operating system. In object-oriented programming, a memory leak may happen when an object is stored in memory but cannot be accessed by the running code.  A memory leak can diminish the performance of the computer by reducing the amount of...

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Javascript Vs Jquery

JavaScript: A powerful language in web developmentJavaScript is a scripting language that is used to add interactivity to our web pages. It is one of the three core technologies alongside HTML and CSS which are used to create web pages. JavaScript is supported by all the web browsers and the web browsers have a built-in JavaScript engine to identify JavaScript code and work with it. Thus, JavaScript...

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Abstract Class & Interface

What is an Abstract Class? An abstract class is a special kind of class that has no implementation. It cannot be instantiated. Its implementation logic is provided by the classes that derive from it. It can have both abstract as well as non-abstract methods.  It is not compulsory to have...

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Self Joins in SQL Server

Self Joins in SQL Server- Find the Manager Name for each employee in the employee table A self join is a join of a table to itself. This table appears twice in the FROM clause and is followed by table aliases that qualify column names in the join condition. To perform a self join,...

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