Microsoft has removed SQL Server 2008 R2 from its main downloads page. However, the can still be retrieved via redirected links and the Wayback Machine. Use extreme caution and verify the digital signature.
: This feature allows developers and DBAs to package database objects (schemas, tables, logins) into a single unit called a DAC package (or .dacpac ). This simplifies the "writing" of database deployments and updates across different environments.
The benefits of using SQL Server 2008 R2 include:
"SQL Server 2008 R2" (Microsoft Docs, archived) Link format (historical): https://docs.microsoft.com/en-us/previous-versions/sql/sql-server-2008-r2/ms143776(v=sql.105)
: If you already have the base installation, you can download Service Pack 2 (SP2) directly to update it. 3. How to Install from an ISO