What is MS SQL Server Database?

Microsoft SQL Server stores all your mission-critical and precious data in a database. The primary database of SQL Server is called MDF (Master Database File). It is an organized collection of data, which can be accessed using T-SQL queries. The database has an architecture or model, which can vary from version to version. The secondary database of Microsoft SQL Server is NDF file, which also contains optional metadata. Data in the SQL Server database is organized according to the database model. As MS SQL Server is a Relational Database Management System (RDBMS), it uses relational model to manage data.

In Microsoft SQL Server database, the data is organized in the logical components, which are visible to the users. SQL Server database is also implemented physically as two or more than two files on the hard drive. While working on the database, you generally use the logical components of the database, such as views, tables, users, and procedures. Physical implementation of the files is transparent for the most part. Generally, only the DBA (Database Administrator) has to work with physical implementation of SQL Server database.

Every instance of the Microsoft SQL Server includes four system database, (which are master, msdb, model, and tempdb), and one or more individual user databases. Some business organizations have a single user database, which contains all data of the organization. On the other hand, some business organizations have separate database for every department or group in the organization. In some situations, entire database is used by single application.

Indexing in SQL Server Database

Microsoft SQL Server database takes advantage of the indexing feature for increasing its performance. The simplest type of indexing deploys a sorted list of contents of a particular table column, which has pointers to row associated with value. The index enables a group of table rows, which matches some criteria, to be located and accessed quickly.

In Microsoft SQL Server database, you can easily create or remove the database indexes, without modifying the existing applications, which are using them. In other words, the database indexes work transparently to end-user or application querying SQL Server database.

SQL Server database is considered as reliable and stable database file, which offers high-availability as compared to other database systems. However, under some situations, SQL Server database become inaccessible due to corruption and you face data loss. Database corruption can be the outcome of virus infection, application malfunction, improper system shutdown, user errors, missing database objects, and more. To retrieve data in such cases, repair SQL Server database using effective tools.

Stellar Phoenix SQL Recovery v3.0 is the most efficient SQL database recovery software that successfully handles all MDF corruption scenarios. This MS SQL database recovery application is designed for Microsoft SQL Server 2008, 2005, and 2000. The software restores all MDF file objects, such as tables, reports, macros, stored procedures, forms, triggers, views, indexes, and more. It enables you to recover MS SQL database easily with interactive graphical user interface.