Microsoft SQL Server Internal Database Versions and Compatibility Levels
A database created by a more recent version of Microsoft SQL Server cannot be attached or restored to an earlier version. This restriction is there because an older version cannot know about file format changes that were introduced in the newer release.
If you attempt to attach a database to an earlier version, you will get SQL Server error
948 with the internal version numbers listed in the error message text.
The internal database versions for SQL Server aren't clearly documented in the Microsoft documentation.
|SQL Server Version||Internal Database Version||Database Compatibility Level|
|SQL Server 2017||869||140|
|SQL Server 2016||852||130|
|SQL Server 2014||782||120|
|SQL Server 2012||706||110|
|SQL Server 2012 CTP1
(a.k.a. SQL Server 2011 Denali)
|SQL Server 2008 R2||660 / 661||100|
|SQL Server 2008||655||100|
|SQL Server 2005 SP2+
with VarDecimal enabled
|SQL Server 2005||611||90|
|SQL Server 2000||539||80|
|SQL Server 7.0||515||70|
|SQL Server 6.5||408||65|
|SQL Server 6.0||?||60|
Legend: ? = still investigating, RTM = Release to manufacturing, SPn = Service Pack n
You can comment here. If you know of a internal db version that we don't have listed here, please use the comments.