Online Access Free Oracle.1z0-071.v2022-02-07.q334 Practice Test (Page 47)

1z0-071 Exam Question 226

Which statements is true about using functions in WHERE and HAVING?

A.using single-row functions in the WHERE clause requires a subquery

B.using aggregate functions in the HAVING clause requires a subquery

C.using aggregate functions in the WHERE clause requires a subquery

D.using single-row functions in the HAVING clause requires a subquery

1z0-071 Exam Question 227

Examine the following query:
SQL> SELECT prod_id, amount_sold
FROM sales
ORDER BY amount_sold
FETCH FIRST 5 PERCENT ROWS ONLY;
What is the output of this query?

A.It displays 5 percent of the products with the highest amount sold.

B.It displays the first 5 percent of the rows from the SALEStable.

C.It displays 5 percent of the products with the lowest amount sold.

D.It results in an error because the ORDER BYclause should be the last clause.

1z0-071 Exam Question 228

Which three statements are true about multiple-row subqueries? (Choose three.)

A.They can return multiple columns as well as rows.

B.They can contain group functions and GROUP BY and HAVING clauses.

C.They can return only one column but multiple rows.

D.They can contain group functions and the GROUP BY clause, but not the HAVING clause.

E.They cannot contain a subquery within a subquery.

F.They can contain a subquery within a subquery.

1z0-071 Exam Question 229

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

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

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

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

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

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

1z0-071 Exam Question 230

View the exhibit and examine the descriptions of the DEPTand LOCATIONStables.

You want to update the CITYcolumn of the DEPTtable for all the rows with the corresponding value in the CITYcolumn of the LOCATIONStable for each department.
Which SQL statement would you execute to accomplish the task?

A.UPDATE dept d
SET city = ALL (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);

B.UPDATE dept d
SET city = (SELECT city
FROM locations l)
WHERE d.location_id = l.location_id;

C.UPDATE dept d
SET city = ANY (SELECT city
FROM locations l)

D.UPDATE dept d
SET city = (SELECT city
FROM locations l
WHERE d.location_id = l.location_id);

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1z0-071 Exam Question 226

1z0-071 Exam Question 227

1z0-071 Exam Question 228

1z0-071 Exam Question 229

1z0-071 Exam Question 230

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