Is SQL Server Express 2008 R2 supported for Appian ? We have a proposed 20 user

Thanks Alok, apart from the 10GB database restriction, 1GB memory limit and the lack of lightweight pooling, are there any other issues you have encountered in testing ? This should not affect the Appian performance directly as there is a small amount of data they will be utilising in Tempo and the Business Db.
We have been running it successfully in a dev environment as we want to simplify the client's upgrade path to SQL Std edition when they scale their installation to a larger user base, rather than implementing MySQL.

Thanks Alok, apart from the 10GB database restriction, 1GB memory limit and the lack of lightweight pooling, are there any other issues you have encountered in testing ? This should not affect the Appian performance directly as there is a small amount of data they will be utilising in Tempo and the Business Db.
We have been running it successfully in a dev environment as we want to simplify the client's upgrade path to SQL Std edition when they scale their installation to a larger user base, rather than implementing MySQL.