SQL join is an instruction to a database to combine data from more than one table. There are different kinds of joins, which have different rules for the results they create. In most SQL implementations you may find such joins as inner join, left join, right join, full join and also language implementation specific ones.
Posts tagged with "Basic" tag
In computer science, data structures are abstract structures organized in particular way that are used to organize data and provide various operations upon it. Different kinds of data structures are suited to different kinds of applications, and some are highly specialized to specific tasks.
ADO.NET is a feature of Microsoft .NET Framework that you can use to access and manipulate data. It is a part of the base class library that is included with the .NET Framework. It is commonly used by programmers to access and modify data stored in relational database systems, though it can also access data in non-relational sources.
Encapsulation is one of the four fundamental OOP concepts. It is the inclusion within a program object of all the resources needed for the object to properly function on its own - basically, the methods and the data. The object has its public interface and other objects adhere to these interface to use the object without having to be concerned with how the object internally implements it. The idea is "don't tell me how you do it; just do it".
Often abbreviated DB, a database is basically a collection of information organized in such way that a computer program can quickly select desired pieces of data. You can think of a database as an electronic filing system. You can not only store, but also insert, update and delete data from DB.
CSS is a style sheet language used to set the visual style of web pages. Along with HTML, it is used in modern web development to create web pages and user interfaces for web applications. But it is important to separate CSS (visual presentation of content) from HTML (description of content).
SQL stands for Structured Query Language. Basically, SQL is used to communicate with and manipulate a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control.
HTML (Hypertext Markup Language) is a markup language used to create web pages. Any HTML page should follow certain rules to be properly displayed in web browsers: to declare proper Document Type, to include key components such as