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Which statement describes the information returned by the DBMS_SPACE.SPACE_USAGE procedure for LOB space usage？（）
- A、 It returns space usage of only BasicFile LOB chunks.
- B、 It returns space usage of only SecureFile LOB chunks.
- C、 It returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.
- D、 It returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables.
参考答案
更多 “Which statement describes the information returned by the DBMS_SPACE.SPACE_USAGE procedure for LOB space usage？（）A、 It returns space usage of only BasicFile LOB chunks.B、 It returns space usage of only SecureFile LOB chunks.C、 It returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.D、 It returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables.” 相关考题
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Evaluate this SQL statement:In the statement, which capabilities of a SELECT statement are performed?()
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Evaluate these two SQL statements:What is true about them?()
A. The two statements produce identical results.B. The second statement returns a syntax error.C. There is no need to specify DESC because the results are sorted in descending order by default.D. The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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The STUDENT_GRADES table has these columns: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?（）A. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;B. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end ASC, gpa ASC;C. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end, gpa DESC;D. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end DESC;E. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end ASC;
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Examine the structure of the EMPLOYEES and DEPARTMENTS tables:Evaluate this SQL statement:Which SQL statement is equivalent to the above SQL statement?()
A.B.C.D.
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You issue this statement：ALTER DATABASE BACKUP CONTROLFILE TO TRACE； What does the statement generate？（）A、A text copy of the control file.B、A binary copy of the control file.C、A file containing a SQL statement which will re-create the database.D、A file containing a SQL statement which will re-create the control file.
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Which three statements are true about terms in a policy?（）A、The order of the terms in a policy is irrelevant.B、The action is specified in a then statement.C、Terms are optional in a policy.D、The match condition can be identified with a from statement.E、A from statement is mandatory in a term.
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Which two statements are true about terms in a routing policy?（）A、A then statement is mandatory in a termB、If a term does not contain a from statement, all routers matchC、If a term does not contain a from statement, the Junos OS will not commitD、A then statement is not mandatory in a term
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Which three are true?（）A、A MERGE statement is used to merge the data of one table with data from another.B、A MERGE statement replaces the data of one table with that of another.C、A MERGE statement can be used to insert new rows into a table.D、A MERGE statement can be used to update existing rows in a table.
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Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary, hire_date FROM EMPLOYEES ORDER BY 2 DESC; What is true about them?（）A、The two statements produce identical results.B、The second statement returns a syntax error.C、There is no need to specify DESC because the results are sorted in descending order by default.D、The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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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?（）A、SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;B、SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester _end, ASC,gpa ASC;C、SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester _end, gpa DESC;D、SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC,semester_end DESC;E、SELECT student_id, semester_end, gpa FROM student_grades
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单选题Which of the following resources can be referenced in the LOCK statement?（）A
RowB
TableC
ColumnD
Table space
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单选题Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary , hire_date FROM EMPLOYEESORDER BY 2 DESC; What is true about them?（）A
The two statements produce identical results.B
The second statement returns a syntax error.C
There is no need to specify DESC because the results are sorted in descending order by default.D
The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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多选题Which two statements are true about terms in a routing policy?（）AA then statement is mandatory in a termBIf a term does not contain a from statement, all routers matchCIf a term does not contain a from statement, the Junos OS will not commitDA then statement is not mandatory in a term
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单选题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?（）A
SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;B
SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester _end, ASC,gpa ASC;C
SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester _end, gpa DESC;D
SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC,semester_end DESC;E
SELECT student_id, semester_end, gpa FROM student_grades
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多选题Which three are true?（）AA MERGE statement is used to merge the data of one table with data from another.BA MERGE statement replaces the data of one table with that of another.CA MERGE statement can be used to insert new rows into a table.DA MERGE statement can be used to update existing rows in a table.
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单选题You issue this statement：ALTER DATABASE BACKUP CONTROLFILE TO TRACE； What does the statement generate？（）A
A text copy of the control file.B
A binary copy of the control file.C
A file containing a SQL statement which will re-create the database.D
A file containing a SQL statement which will re-create the control file.
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单选题Evaluate these two SQL statements: SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY salary DESC; SELECT last_name, salary , hire_date FROM EMPLOYEES ORDER BY 2 DESC; What is true about them?（）A
The two statements produce identical results.B
The second statement returns a syntax error.C
There is no need to specify DESC because the results are sorted in descending order by default.D
The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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多选题Which four types of object can be thrown using the throw statement？（）AErrorBEventCObjectDExceptionEThrowableFRuntime Exception
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多选题Which three statements are true about terms in a policy?（）AThe order of the terms in a policy is irrelevant.BThe action is specified in a then statement.CTerms are optional in a policy.DThe match condition can be identified with a from statement.EA from statement is mandatory in a term.
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多选题Which four can be thrown using the throw statement？（）AErrorBEventCObjectDThrowableEExceptionFRuntimeException
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多选题Which four types of objects can be thrown using the throw statement？（）AErrorBEventCObjectDExceptionEThrowableFRuntimeException
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单选题Evaluate these two SQL statements: What is true about them?（）A
The two statements produce identical results.B
The second statement returns a syntax error.C
There is no need to specify DESC because the results are sorted in descending order by default.D
The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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