How does Microsoft SQL Server work?
Microsoft SQL Server is a Relational Database Management System (RDBMS) developed by Microsoft to store and retrieve data requested by other software applications. The software is built on the Transact-SQL language, a Microsoft implementation of the Structured Query Language (SQL), which is used to manage and manipulate data stored in tables. The SQL Server software is available in various editions with different feature sets, including Enterprise, Standard, and Express.
Inner workings of Microsoft SQL Server
SQL Server uses a client-server architecture, where the server is responsible for managing the database and the clients connect to the server to access the data. The server communicates with the clients using the Tabular Data Stream (TDS) protocol, which allows for efficient data transmission over networks.
Various components work together to manage and store data in SQL Server. These components include the Database Engine, which provides the core database management functionality, Analysis Services, which provides data analysis and reporting capabilities, Integration Services, which provides data integration and ETL (extract, transform, load) functionality, and Reporting Services, which provides a platform for creating, managing, and delivering reports.
Microsoft SQL Server is made up of a database engine, relational engine and storage engine. These are responsible for:
Database engine – The database engine allows the user to manipulate collections of data. It is also used to create objects such as procedures, views and triggers.
Relational engine – The relational engine manages the connections between different databases, or the connections between different datasets in the same database. It is responsible for managing the user query processing, memory, buffer management and threads.
Storage engine – The storage engine is responsible for storing data. This is done through the use of Storage Area Networks (SAN) or disks.
SQL Server also supports the use of stored procedures, which are precompiled SQL statements that can be stored and executed on the server, and triggers, which are special types of stored procedures that are executed automatically in response to certain events, such as data updates. Additionally, SQL Server includes features for managing security, backup and recovery, and high availability, among others.