What is the use of filegroups in SQL Server?

Question

Filegroups are the physical files on your disc volumes that hold SQL Server's data and can be used for backup and administrative management purposes. The first thing to know are what types of files SQL Server uses: Primary Data Files. Secondary Data Files. 17 янв. 2017 г.

What is the purpose of filegroups in SQL Server?

The filegroup contains the primary data file and any secondary files that aren't put into other filegroups. User-defined filegroups can be created to group data files together for administrative, data allocation, and placement purposes.

What is the purpose of secondary data file?

Secondary data files are optional and can be used to spread data across multiple files/disks by putting each file on a different disk drive. SQL Server databases can have multiple data and log files, but only one primary data file.

Why TempDB is used in SQL Server?

Beyond just spills, SQL Server uses TempDB for a number of internal temporary objects, sorting for online re-indexing operations, multiple active result sets (MARS), along with version stores for data.

What is the purpose of master DB?

The master database records all the system-level information for a SQL Server system. This includes instance-wide metadata such as logon accounts, endpoints, linked servers, and system configuration settings.

Expert · Answer