Hi,
We have a machine running on Windows Server 2008 R2 64-bit Standard Edition SP1. On it we have aSQL Server 2008 R2 Standard Edition SP3 instance. This instance has a database running with compatibility level 90. to upgrade the database, we installed another instance ofSQL Server 2012 Standard Edition SP3. We then restored the database backup from 2008R2 to 2012 instance and change the compatibility level to 110. This led to excessive blocking even in testing phase. When the compatibility was changed back to 90, issue got resolved. Please advice with possible reason and workaround as we need to change it to 110.
Thanks in advance.