[单选]

View the Exhibit and examine the output of the query in different times when the following command runs in an RMAN sessions:
RMAN> BACKUP DATABASE FILESPERSET 2;
The database has seven data files.
Why is the %_COMPLETE refreshed to 13.59 in the third output after reaching 88.77?（）

Examine the structure of the EMPLOYEES, DEPARTMENTS, and TAX tables. For which situation would you use a nonequijoin query?（） To find the tax percentage for each of the employees.。 To list the name, job id, and manager name for all the employees.。 To find the name, salary, and department name of employees who are not working with Smith.。 To find the number of employees working for the Administrative department and earning less then 4000.。 To display name, salary, manager ID, and department name of all the employees, even if the employees do not have a department ID assigned.。 零件在径向位置上有偏重，其偏重总是停留在（）方向的最低位置。 差别计件工资制是（）的内容之一。 泰罗的科学管理理论\。 法约尔的一般管理理论。 韦伯的行政管理理论。 现代管理理论。 （CSCP）控制盘动作，井口安全阀（SSV）和井下安全阀（SSSV）两方关闭时按以下哪种顺序进行：（） 先SSSV后SSV。 同时关闭。 先SSV后SSSV。 In which scenario will you use the Flashback Version Query feature？（）  when you want to restore a table that has been dropped from the Recycle Bin。  when you want to identify the transaction ID of the transaction that deleted some important records from a table。  when you want to recover the schema of a dropped user。 when you want to restore a dropped tablespace。

View the Exhibit and examine the output of the query in different times when the following command runs in an RMAN sessions:
RMAN> BACKUP DATABASE FILESPERSET 2;
The database has seven data files.
Why is the %_COMPLETE refreshed to 13.59 in the third output after reaching 88.77?（）