Online Access Free Oracle.1z0-071.v2024-08-26.q188 Practice Test (Page 11)

1z0-071 Exam Question 46

Which two statements are true regarding the COUNT function? (Choose two.)

A.COUNT(DISTINCT inv_amt) returns the number of rows excluding rows containing duplicates and NULL values in the INV_AMT column

B.COUNT(cust_id) returns the number of rows including rows with duplicate customer IDs and NULL value in the CUST_ID column

C.A SELECT statement using COUNT function with a DISTINCT keyword cannot have a WHERE clause

D.The COUNT function can be used only for CHAR, VARCHAR2 and NUMBER data types

E.COUNT(*) returns the number of rows including duplicate rows and rows containing NULL value in any of the columns

1z0-071 Exam Question 47

Examine the structure of the BOOKS_TRANSACTIONStable.

You want to update this table such that BOOK_IDis set to 'INVALID'for all rows where no MEMBER_ID has been entered.
Examine this partial SQL statement:

Which condition must be used in the WHEREclause to perform the required update?
MEMBER_ID = '';

B.MEMBER_ID = "";

C.MEMBER_ID = NULL;

D.MEMBER_ID IS NULL;

1z0-071 Exam Question 48

Which statement will return a comma-separated list of employee names in alphabetical order for each department in the EMP table?

A.SELECT deptno,LISTAGG(ename, ', ') WITHIN GROUP (GROUP BY deptno) AS employee_list FROM emp ORDER BY ename;

B.SELECT deptno,LISTAGG(ename, ', ') WITHIN GROUP AS employee_list FROM emp GROUP BY deptno ORDER BY ename;

C.SELECT deptno,LISTAGG(ename, ' , ') WITHIN GROUP AS employee_list FROM emp GROUP BY deptno;

D.SELECT deptno,LISTAGG(ename, ', ') WITHIN GROUP (ORDER BY ename) AS employee_list FROM emp GROUP BY deptno;

1z0-071 Exam Question 49

Which three statements are true about GLOBAL TEMPORARY TABLES?

A.A GLOBAL TEMPORARY TABLE can have multiple indexes.

B.A trigger can be created on a GLOBAL TEMPORARY TABLE.

C.Data Manipulation Language (DML) on GLOBAL TEMPORARY TABLES generates no REDO.

D.A GLOBAL TEMPORARY TABLE can be referenced in the defining query of a view.

E.A GLOBAL TEMPORARY TABLE can have only one index.

F.A GLOBAL TEMPORARY TABLE cannot have a PUBLIC SYNONYM.

1z0-071 Exam Question 50

Examine the structure of the MARKS table:
Which two statements would execute successfully? (Choose two.)

A.SELECT student_name,SUM(subject1)FROM marksWHERE student_name LIKE 'R%';

B.SELECT student_name subject1FROM marksWHERE subject1 > AVG(subject1);

C.SELECT SUM(subject1+subject2+subject3)FROM marksWHERE student_name IS NULL;

D.SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subject1)FROM marksWHERE
subject1 > subject2;

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1z0-071 Exam Question 46

1z0-071 Exam Question 47

1z0-071 Exam Question 48

1z0-071 Exam Question 49

1z0-071 Exam Question 50

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