1Z1-047 무료 덤프문제 온라인 액세스

View the Exhibit and examine DEPARTMENTS and the LOCATIONS tables.
Evaluate the following SOL statement:
SELECT location_id, city FROM locations I WHERE NOT EXISTS (SELECT location_id FROM departments WHERE location_id <> I. location_id);
This statement was written to display LOCATION_ID and CITY where there are no departments located. Which statement is true regarding the execution and output of the command?

• A.The statement would execute and would return the desired results.
• B.The statement would not execute because the WHERE clause in the outer query is missing the column name for comparison with the inner query result.
• C.The statement would execute but it will return zero rows because the WHERE clause in the inner query should have the = operator instead of <>.
• D.The statement would not execute because the = comparison operator is missing in the WHERE clause of the outer query.

Which statement is true regarding synonyms?

• A.Synonyms are used to reference only those tables that are owned by another user.
• B.Synonyms can be created for tables but not views.
• C.The DROP SYNONYM statement removes the synonym, and the status of the table on which the synonym has been created becomes invalid.
• D.A public synonym and a private synonym can exist with the same name for the same table.

View the Exhibit and examine the data in the LOCATIONS table.
Evaluate the following SOL statement:
SELECT street_address FROM locations WHERE REGEXP_INSTR(street_address,'[^[: alpha:]] ') = 1;
Which statement is true regarding the output of this SOL statement?

• A.It would display all the street addresses where the first character is a letter of the alphabet.
• B.It would display all the street addresses where the first character is a special character.
• C.It would display all the street addresses that do not have a substring 'alpha'.
• D.It would display all the street addresses where the first character is not a letter of the alphabet.

Which statements are true regarding the usage of the WITH clause in complex correlated subqueries? (Choose all that apply.)

• A.The WITH clause can hold more than one query.
• B.If the query block name and the table name were the same, then the table name would take precedence.
• C.It can be used only with the SELECT clause.
• D.The query name in the WITH clause is visible to other query blocks in the WITH clause as well as to the main query block.

View the Exhibit and examine the data in the
PRODUCT INFORMATION table.
Which two tasks would require subqueries? (Choose two.)

• A.displaying the total number of products supplied by supplier 102071 and having product status OBSOLETE
• B.displaying the minimum list price for each product status
• C.displaying the number of products whose list prices are more than the average list price
• D.displaying all supplier IDs whose average list price is more than 500
• E.displaying all the products whose minimum list prices are more than the average list price of products having the product status orderable