How does SQL database store data?

Question

When you insert any data into a SQL Server database, it saves the data to a series of 8 KB pages inside the data file. If multiple data files exist within a filegroup, SQL Server allocates pages to all data files based on a round-robin mechanism. 6 июл. 2016 г.

How does SQL store records?

A record, also known as a row, is the smallest storage structure in a SQL Server data file. Each row in a table is stored as an individual record on disk. Not only table data is stored as records, but also indexes, metadata, database boot structures and so forth.

How does SQL Server store data in data files?

SQL Server stores data using two file extensions:1MDF files are the data files that hold the data and objects such as tables, indexes, stored procedures and views.2LDF files are the transaction log files that record all transactions and the database modifications made by each transaction.How To View SQL Server Database File Locations - Netwrix

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.SQL Server Storage Best Practices - ITPro Today

Does SQL store data in memory?

SQL Server stores its data in 8KB data pages. As these pages are read off disk they are stored in memory. This is referred to as buffer memory. A list of all the data pages in memory is stored in the dynamic management view sys.

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