If Workgoup geodatabases require an ArcGIS Server license, and the Desktop geodatabases do not, then why on some of the helps I read that ArcSDE is sold as part of ArcGIS server in three levels: Desktop, workgroup and enterprise??
There are three types of ArcSDE geodatabases: ArcSDE Personal Desktop (SQL Server Express): SQL Server Express,no license required ArcGIS Server Workgroup (ArcSDE Workgroup): SQL Server Express, license is required ArcGIS Server Enterprise (ArcSDE Enterprise): license is required (example: Oracle, SQL Server, DB2, Informix)