Learn Microsoft SQL Server (2012) – Free Tutorials
SQL Server is a relational database management system that is capable of handling large amount of data apart from providing several methods to ensure data integrity, it also provides advance administrative utilities. It renders complete data integrity protection and advanced security to objects.
This tutorial explains the special features of the transact-SQL, statements, which provide flexible method of retrieving and modifying data in tables. The query language which enables to access data in SQL server is powerful. The purpose of this online reference is to enable the reader to comprehend the important concept of SQL Server.
What is SQL Server?
SQL Server is a client/server Relational Database Management System (RDBMS) that uses Transact-SQL to send request between a client and SQL Server
SQL Server is designed to be a client/server system. Client/server systems are connected so that the database can reside on a central computer, known ans a server, and be shared among several users. When users want to access the data in SQL Server, they run an application on their local computer, known as a client that connects over a network to the server running SQL Server.
SQL Server can work with thousands of client applications simultaneously. The server has features to prevent logical problems that occur if a user tries to read or modify data currently being used by others.
While SQL Server is designed to work as a server in a client/serve network, it is also capable of working as a stand-alone database directly on the client. The scalability and ease-of-use features of SQL Server allow it to work efficiently on the client without consuming too many resources. SQL Server effectively allocates the available resources, such as memory network bandwidth, and disk I/O, among the multiple users.
Relational database Management System
The RDBMS is responsible for:
- Maintaining the relationships between data in the database.
- Ensuring the data is stored correctly – that the rules defining the relationships between data are not violated.
- Recovering all data to a point of known consistency in the event of system failure
SQL Server uses Transact-SQL as its database query and programming language. SQL is a set of commands that allows the user to specify the information to be retrieved or modified. With Transact-SQL, we can access data and query, update and manage relational database systems. Both American Standard National Institute (ANSI) and the International Standards Organization (ISO) have defined standards for SQL Server.
In this tutorial we’ll begin by choosing the right edition of SQL Server of many available options. We’ll see
- How to install it properly
- Explore the different tools and applications for working with SQL Server
- Start designing and creating databases and tables
- Learn how to use Transact-SQL – the language of SQL Server to retrieve, insert and manipulate data
- Perform core database administration tasks like working with indexing to improve performance
- Learn how to secure your data
- Learn how to work with backup and restore
We’ll even discuss some of the most advanced features of this product, things like SQL Server Reporting Services and Integration Services
If you’ve been working with SQL Server already you may find that you’ve only scratch the surface of what it really can do. And if you are just beginning to use SQL Server this is the perfect place to start.
You have come to the right place to learn SQL Sercer. And if you want to learn the specifics of SQL for SQL Server 2012, you’ve made an especially good choice. Along the way, you’ll learn a lot about relational database management systems in general and about SQL Server in particular.
Why learn SQL? First, because most programmers would be better at database programming if they knew more about SQL. Second, because SQL programming is a valuable specialty in itself. And third, because knowing SQL is the first step toward becoming a database administrator. In short, knowing SQL makes you more valuable on the job.
This tutorial is the ideal source for application developers who need to work with a SQL Server database. It shows you how to code the SQL statements that you need for your applications. It shows you how to code these statements so they run efficiently. And it shows you how to take advantage of the most useful advanced features that SQL Server has to offer.
This tutorial is also a good choice for anyone who wants to learn standard SQL. Since SQL is a standard language for accessing database data, most of the SQL code in this website will work with any database management system. As a result, once you use this tutorial to learn how to use SQL to work with a SQL Server database, you can transfer most of what you have learned to another database management system such as Oracle, DB2, or MySQL.