1. For Activity universe , any difference between BOXI R2 and BOXI R3
2. After DB level migration(by CCM) from R2 to R3, whether the R2 's activity universe and sample reports kept, or they have been replaced by the R3's activity universe and sample reports?
3. What is the default activity universe. it seems there are different version corresponding to different DB. After migration, I found the activity universe does not work,, need to import the corresponding one again, auditing_db_db2.biar. is the default one for MySQL DB?