问题
I have both SQL Server 2008 r2 and SQL Server 2012 installed, but when I open SQL Server 2008 r2 management studio and enter by (localhost), it's version seems to be 11.0.2218 which is for sql server 2012 management studio, so I can't access or create older tables. Is there any way to change SQL Server management studio?
回答1:
Open your SQL Server Configuration Manager, Under SQL Server Network Configuration you will find Protocols for and all the instances that is installed will be there. MSSQLSERVER is the default instance. Find your instance name there.
There other option is to run regedit Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server You will find keys like.
MSSQL10_50.MSSQLSERVER and
MSSQL11.SQLEXPRESS
Yours will be different though.
That will show you the SQL Server version and instance. Mine show MSSQL10.5 which is 2008 R2 as MSSQLSERVER which is the default instance, and MSSQL11 as SQLEXPRESS which is my named instance for 2012
来源：https://stackoverflow.com/questions/27101150/conflict-between-sql-server-2008-r2-and-2012