Upgrading the SQL Server version My SQL Server version at home is 661 and at my school's is 655, so every time I try to open my web's SQL Server database at school it says there is an error: 



So I thought that uploading the SQL Server version at school will fix it (or downgrading the SQL Server version in my home).

On both computers there is Microsoft Visual Web Developer 2010

How do I upgrade the SQL Server version?
Maybe a compatibility level will help you. You can define it in the options of your database under compatibility level. Change it to a version earlier of your current sql server at home. This way I'm sure it will be correctly used in your school.