Download Microsoft® SQL Server® 2008 R2 SP2 - Express Edition from Official Microsoft Download Center
SQL 2008 for Hosters | Microsoft Learn
SQL Server 2008 R2 Standard Memory Limit
Installing SQL Server 2005 on Windows Server 2008 | Practical365
Upgrading to a new SQL Server edition
Explore The SQL Server Edition Comparision
データベース エンジンのバージョンとエディションSQL Server決定する - SQL Server | Microsoft Learn
SQL SERVER - Download FREE SQL SERVER Express Edition and Service Pack 1 - SQL Authority with Pinal Dave
KB-49924: Tutorial for installing Microsoft® SQL Server® 2008 R2 - Express Edition. - Elipse Knowledgebase
How to tell what SQL Server versions you are running
Getting Started with the Web Services API in SQL Server 2008 R2 Master Data Services - Microsoft Community Hub
The history of SQL Server - the evolution of SQL Server features
Server 2008 Web Edition limitations - Server Fault
SQL Server 2008 R2 Setup - OCLC Support
SQL Server 2008はデータ型に大変更あり（2） | 日経クロステック（xTECH）
Not sure if SQL Server 2008 Express was upgrade to Web Edition - Server Fault
Microsoft SQL Server - Wikipedia
Explained: SQL Web vs Standard vs Enterprise
SQL Server in Windows operating system - SQL Server | Microsoft Learn
SQL Server 2008はデータ型に大変更あり（2） | 日経クロステック（xTECH）
SQL Server End of Life: All You Need To Know - Lansweeper.com
