To experts out there,
We have planned to apply service pack 1 and cu 4 for prod environment (sql server 2012).
To begin with we planned to do it in the test environment first and then to the prod server.
What will be downtime required for this activity(for applying sp1 cu4). we dont have a cluster setup for test server,so rolling upgrade is not possible.
What are the basic guidelines to be followed pre and post the activity. Any links will be helpful.
Thanks