[多选]

You performed an incremental level 0 backup of a database:
RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE;
To enable block change tracking after the incremental level 0 backup, you issued this command:
SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’;
To perform an incremental level 1 cumulative backup, you issued this command:
RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;
Which three statements are true?（）

You created a department report and preview it in life preview. The font for the department name is too small and you want to enlarge it but do not want to change the font for any other fields. What is the easiest way to make this change?（） Select the text to be enlarged in the life previewer and make the size change using the style bar. 。 Select the text to be enlarged in the layout mode and make the change. 。 Open the report wizard in the re-entrant mode and make the change. 。 Make the copy of the report, open the copy, make the changes and then delete the original report.&e。 市场法 The STUDENT_GRADES table has these columns: STUDENT_ID NUMBER(12) SEMESTER_END DATE GPA NUMBER(4,3) The register has requested a report listing the students' grade point averages (GPA), sorted from highest grade point average to lowest within each semester, starting from the earliest date. Which statement accomplishes this?（） SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester _end, ASC,gpa ASC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester _end, gpa DESC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC,semester_end DESC;。 SELECT student_id, semester_end, gpa FROM student_grade。 为了确保楼梯栏杆高度满足要求，内楼梯扶手高度自（）量起不宜小于0.90m。 踏步前缘线。 踏步中心线。 踏步内侧线。 踏步结构面。 Consider the following command to create a tablespace in your production database （which is using an Automatic Storage Management [ASM] instance to manage the database files）： CREATE TABLESPACE user_tbsp DATAFILE ’+dgroup3 （usder_temp） /user_files/user_tbsp’ SIZE 200M； What would be the result of this command？（）  It would result in an error because the template cannot be used along with the disk group.。  It would result in an error because the path cannot be specified while creating a tablespace in a disk group.。  It would create a tablespace with a data file that has an alias， and its attributes are set by the user-defined template.。  It would create a tablespace with a data file that does not have an alias， and its attributes are set by the user-defined template.。

You performed an incremental level 0 backup of a database:
RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE;
To enable block change tracking after the incremental level 0 backup, you issued this command:
SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’;
To perform an incremental level 1 cumulative backup, you issued this command:
RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;
Which three statements are true?（）