How data is stored internally in SQL Server?

How SQL database works internally?

Simply, it reads through each candidate record in the database and matches the expression to the fields. So, if you have "select * from table where name = 'fred'", it literally runs through each record, grabs the "name" field, and compares it to 'fred'.

How is data stored inside a database?

Inside a database, data is stored into tables. This means that all the data has to be stored in a standardized manner. This is why tables have been created. Tables are the simplest objects (structures) for data storage that exist in a database.

Where does SQL database store data?

SQL Server databases are stored in the file system in files. Files can be grouped into filegroups. For more information about files and filegroups, see Database Files and Filegroups.

How does SQL Server use storage?

The most basic concept to understand concerning how SQL Server uses storage is that databases are composed of two types of files:Data files. These files store the database data. ... Log files. These files store the database transactions that allow a database to be restored back to a specific point in time.