A. Only the incident metadata and dumps are stored in the Automatic Diagnostic Repository(ADR).
B. The problem key is the same as the incident number.
C. The database sends an incident alert to the Oracle Enterprise Manager Database Home page.
D. Every problem has a problem key,which is a text string that describes the problem.
E. The database makes an entry into the alert log file when problems and incidents occur.
答案：（C、D、E）
解析：
A，Diagnostic data includes the trace files,dumps,and core files that are also present in previous releases,plus new types of diagnostic data that enable customers and Oracle Support to identify,investigate,track,and resolve problems quickly and effectively.
B，incident number(112058)，事件编号是实例里第多少条事件信息; problem key(ORA 1578)，是错误类型编号