The current version is SQL server 2012 SP2 (build 5058) and now there are few Hotfix and CU available to update the SQL server so I just want to know if I can install CU3 (build 5556) patch directly without installing CU1 and CU2 or all these needs to install sequentially one by one. The patch which I want to install is Hotfix for SQL2012 (build -5522) , CU1 (Build- 5532), CU2 (Build- 5548) and CU3 (Build- 5556). Please advise..
A cumulative update (CU) contains all of the updates prior. If you install CU3, you'll get the updates from CU2 & CU1. You won't need to install them one by one. A Hotfix is a specific update that addresses a specific issue. Is there a specific hotfix you are looking at? Hope that helps!