Tutorial by Topics: s

DATA DIVISION is one of the four parts that make up a COBOL program. It contains statements describing the data used by the program. It consists of four sections: FILE SECTION, WORKING-STORAGE SECTION, LOCAL-STORAGE SECTION and LINKAGE SECTION.

This section provides an overview of what xml-parsing is, and why a developer might want to use it. It should also mention any large subjects within xml-parsing, and link out to the related topics. Since the Documentation for xml-parsing is new, you may need to create initial versions of those ...

Semaphores & Mutexes are concurrency controls used to synchronize multiple thread access to shared resources. Semaphore Here's a brilliant explanation from this Stackoverflow question: Think of semaphores as bouncers at a nightclub. There are a dedicated number of people that are al...

Writing to a .csv file is not unlike writing to a regular file in most regards, and is fairly straightforward. I will, to the best of my ability, cover the easiest, and most efficient approach to the problem. ParameterDetailsopen ("/path/", "mode")Specify the path to your CS...

There are scenarios when dealing with service layer in liferay, when we need to query database with too many clauses or dealing with multiple tables.In such cases,we use either of: 1)Dynamic query(wrapper on Hibernate criteria API) 2)Custom SQL queries References: Custom SQL Dynamic quer...

Oracle Real Application Security was introduced in Oracle 12c. It summarize many Security Topics like User-Role-Model, Access Control, Application vs. Database, End-User-Security or Row- and Column Level Security

Fastjson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Fastjson Features: Provide best performance in server side and android client Provide simple toJSONString() and parseObjec...

A Nested-GridView is a GridView control inside the grid row of the parent GridView control. <asp:GridView ID="gvParent" runat="server"></asp:GridView> <asp:GridView ID="gvChild" runat="server"></asp:GridView> gvParentIt is ...

This section provides an overview of what raster is, and why a developer might want to use it. It should also mention any large subjects within raster, and link out to the related topics. Since the Documentation for raster is new, you may need to create initial versions of those related topics....

After installing perforce and setup your workspace through p4v, you could set up your workspace in Windows cmd.

Android Architecture Components is new collection of libraries that help you design robust, testable, and maintainable apps. Main parts are: Lifecycles, ViewModel, LiveData, Room.

Computational clause is used to describe type of storage used in COBOL. It is used for 3 ways: COMP-1, COMP-2 and COMP-3. The most common form of computational is COMP-3. It frequently is just called "COMP" by programmers.

The PSR (PHP Standards Recommendation) is a series of recommendations put together by the FIG (Framework Interop Group). "The idea behind the group is for project representatives to talk about the commonalities between our projects and find ways we can work together" - FIG FAQ PSRs can b...

An XML catalog is made up of entries from one or more catalog entry files. A catalog entry file is an XML file whose document element is catalog and whose content follows the XML catalog DTD defined by OASIS at http://www.oasis-open.org/committees/entity/spec.html. Most of the elements are catalog e...

Jackson is a multi-purpose Java library for processing JSON. Jackson aims to be the best possible combination of fast, correct, lightweight, and ergonomic for developers. Jackson features： Multi processing mode, and very good collaboration Not only annotations, but also mixed annotations Fully s...

Sleep command can be used to pause for given time. If you want to use different input, use like this Seconds : $sleep 1s (seconds is default) Minutes : $sleep 1m Hours : $sleep 1h days : $sleep 1d If you want to sleep for less that one second, use $sleep 0.5 You can use like above accord...

It is often useful to present a first-run experience to new users of your App. This could be for any number of reasons, such as prompting them to sign in (if required for your situation), explaining how to use the App, or simply informing them of new features in an update (as Notes, Photos and Music...

Engines can be considered miniature applications that provide functionality to their host applications. A Rails application is actually just a "supercharged" engine, with the Rails::Application class inheriting a lot of its behavior from Rails::Engine. Engines are the reusable rails appli...

Python has many built-in exceptions which force your program to output an error when something in it goes wrong. However, sometimes you may need to create custom exceptions that serve your purpose. In Python, users can define such exceptions by creating a new class. This exception class has to be ...