Obviously you can blur the distinctions according to your programming style, but generally a struct is a structured piece of data. An object is a sovereign entity that can perform some sort of task. In most systems, objects have some state and as a result have some structured data behind them. However, one of the … Read more
As far as the C++ standard is concerned, there is no such thing as a “method”. This terminology is used in other OO languages (e.g. Java) to refer to member functions of a class. In common usage, you’ll find that most people will use “method” and “function” more or less interchangeably, although some people will … Read more
Here I copy paste some of the information that I have collected Key A key is a single or combination of multiple fields. Its purpose is to access or retrieve data rows from table according to the requirement. The keys are defined in tables to access or sequence the stored data quickly and smoothly. They … Read more
In the examples you give, transparent is being used to mean hidden in the sense of things taking place automatically behind the scenes (i.e. without the user of the code or the program having to interact). Opaque is also being used to mean hidden, which is perhaps where the confusion comes in. The term opaque … Read more
The versioning is simply a mess: Java 1.0 and 1.1 were normal Then came Java 1.2, but you were supposed to call it “Java 2, JDK 1.2” This continued until 1.4 (There were also minor releases like 1.4.2) The next version was then supposedly “Java 5.0”, but there was still “1.5” all over the place … Read more
A statement is any text that the database engine recognizes as a valid command. As of SQL-92: An SQL-statement is a string of characters that conforms to the format and syntax rules specified in this international standard. A query is a statement that returns a recordset (possibly empty). How can I call a chunk of … Read more
What you have there is called a junction table. It is also known as: cross-reference table bridge table join table map table intersection table linking table link table But I’ve never seen the term “lookup table” used for this purpose.
There are two issues. First, it’s preferable that threads have an affinity to a certain CPU (core) to make the most of their CPU-local caches. This must be handled by the operating system. This CPU affinity for threads is often also called “thread affinity”. In case of Java, there is no standard API to get … Read more
To quote Wikipedia: A web application framework is a software framework that is designed to support the development of dynamic websites, web applications and web services. The framework aims to alleviate the overhead associated with common activities performed in Web development. Basically, a web framework makes it easier for you to develop your application. Most … Read more
The compiler converts code written in a human-readable programming language into a machine code representation which is understood by your processor. This step creates object files. Once this step is done by the compiler, another step is needed to create a working executable that can be invoked and run, that is, associate the function calls … Read more