Choose three. In which three situations can you use threshold server-generated alerts to help diagnose and fix problems?
A.when free space in a dictionary managed tablespace falls below a specified percentage B.when free space in a locally managed tablespace falls below a specified percentage C.when the total number of locked user account exceeds a specific value D.when the number of logons per second exceeds a specific value E.when a resumable statement is suspended F.when the total number of logons exceeds a specific value正确答案ABF
