[多选]
Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER NOT NULL, Primary Key
EMP_NAME VARCHAR2(30)
JOB_ID NUMBER\
SAL NUMBER
MGR_ID NUMBER References EMPLOYEE_ID column
DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in
orderto populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）

A . You cannot use the EMP_ID_SEQ sequence to populate the JOB_ID column.
B . The EMP_ID_SEQ sequence is invalidated when you modify the EMPLOYEE_ID column.
C . The EMP_ID_SEQ sequence is not affected by modifications to the EMPLOYEES table.
D . Any other column of NUMBER data type in your schema can use the EMP_ID_SEQ sequence.
E . The EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEES table.
F . The EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEE_ID column.

圆柱销靠（）配合配合固定在销孔中，经多次拆卸会降低其定位精度和可靠性。过盈。过渡。间隙。紧固。 You need to design a storage mode for the ProductOrderStatus measure group. What should you do?（） Use ROLAP for the Historical partition and MOLAP for the CurrentDay partition.。 Use MOLAP for the Historical partition and ROLAP for the CurrentDay partition.。 Use ROLAP for the Historical partition and Automatic MOLAP for the CurrentDay partition.。 Use HOLAP for the Historical partition and Low-latency MOLAP for the CurrentDay partition.。 Which two activities are NOT supported by the Data Recovery Advisor DRA（） Recover from failures in the RAC environment.。 Diagnose and repair a data file corruption online.。 Diagnose and repair a data file corruption offline.。 Diagnose and repair failures on a standby database。 You plan to control idle sessions that are blocking other sessions from performing transactions. Your requirement is to automatically terminate these blocking sessions when they remain idle for a specified amount of time. How would you accomplish this task?（） Set metric threshold。 Implement Database Resource Manager。 Enable resumable timeout for user sessions。 Add directives to Automatic Database Diagnostic Monitor (ADDM)。 When is it necessary for a TDA to be conducted on an installed IBM DS8800? （） when installing SSD drives。 when adding a new workload。 when installing SATA drives。 when adding more Linux host。

Examine the structure of the EMPLOYEES table:
EMPLOYEE_ID NUMBER NOT NULL, Primary Key
EMP_NAME VARCHAR2(30)
JOB_ID NUMBER\
SAL NUMBER
MGR_ID NUMBER References EMPLOYEE_ID column
DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in
orderto populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）

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