What is SQL

What is SQL

SQL stands for Structured Query Language, and it is a programming language used to manage and manipulate data in relational databases. SQL allows users to create, modify, and delete database tables, as well as insert, update, and retrieve data stored in those tables.

SQL commands are used to interact with databases, and they are executed by a database management system (DBMS). Some popular DBMSs that support SQL include Microsoft SQL Server, MySQL, Oracle Database, and PostgreSQL.

SQL is a powerful and widely used language that plays a critical role in data management and analytics, and it is used in a variety of applications, including web development, data science, and business intelligence. ASP.NET developers commonly use SQL to manage data in their web applications. For example, they may use SQL to retrieve a list of products from a database and display them on a web page, or to insert new user information into a table when a user registers on a website.

In this chapter, you create a Web site project, add files and folders to it, and build the pages. Follow these steps to create the MyMoviesCollection Web project:

• In Visual Web Developer, choose File àNew Web Site.
• In the New Web Site dialog box, select the Empty Web Site template, as shown in Figure 4-1.
• This time, you start the site with no files and build everything from scratch.

• Set Location to File System, and Language to C Sharp (C#).
• In the Location box on the right, type the name of a new directory (for example, c:\MyMoviesCollection, as used in Figure 4-1) or browse to an existing directory to store the project.
• Click OK.

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