Oracle Certification 047

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Oracle EXAM 1Z0-047
Oracle Database SQL Expert

Total Questions:

276

For interactive and self-paced preparation of exam 1Z0-047, try our practice exams. Practice exams also include self assessment and reporting features

1

Question: 1

Which three possible values can be set for the TIME_ZONE session parameter by using the ALTER SESSION command? (Choose three.) A. 'os' B. local C. -8:00' D. dbtimezone Li E. 'Australia'

Answer: B,C,D Question: 2

EMPDET is an external table containing the columns EMPNO and ENAME. Which command would work in relation to the EMPDET table? A. UPDATE empdet SET ename = 'Amit' WHERE empno = 1234; B. DELETE FROM empdet WHERE ename LIKE 'J%'; C. CREATE VIEW empvu AS SELECT* FROM empdept; D. CREATE INDEX empdet_dx ON empdet(empno);

Answer: C Question: 3

Which three tasks can be performed using regular expression support in Oracle Database 10g? (Choose three.) A. it can be used to concatenate two strings. B. it can be used to find out the total length of the string. C. it can be used for string manipulation and searching operations. For interactive and self-paced preparation of exam 1Z0-047, try our practice exams. Practice exams also include self assessment and reporting features

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D. it can be used to format the output for a column or expression having string data. E. it can be used to find and replace operations for a column or expression having string data.

Answer: C,D,E Question: 4

Which three statements are true regarding single-row functions? (Choose three.) A. They can accept only one argument. B. They can be nested up to only two levels. C. They can return multiple values of more than one data type. D. They can be used in SELECT, WHERE, and ORDER BY clauses. E. They can modify the data type of the argument that is referenced. F. They can accept a column name, expression, variable name, or a user-supplied constant as arguments.

Answer: D,E,F Question: 5

View the Exhibit and examine the structure of the ORDERS and ORDERJTEMS tables. Evaluate the following SQL statement: SELECT oi.order_id, product_jd, order_date FROM order_items oi JOIN orders o USING(order_id); Which statement is true regarding the execution of this SQL statement?

For interactive and self-paced preparation of exam 1Z0-047, try our practice exams. Practice exams also include self assessment and reporting features

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A. The statement would not execute because table aliases are not allowed in the JOIN clause. B. The statement would not execute because the table alias prefix is not used in the USING clause. C. The statement would not execute because all the columns in the SELECT clause are not prefixed with table aliases. D. The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list.

Answer: D Question: 6

Which two statements are true regarding the execution of the correlated subqueries? (Choose two.) A. The nested query executes after the outer query returns the row. B. The nested query executes first and then the outer query executes. C. The outer query executes only once for the result returned by the inner query. D. Each row returned by the outer query is evaluated for the results returned by the inner query.

Answer: A,D

For interactive and self-paced preparation of exam 1Z0-047, try our practice exams. Practice exams also include self assessment and reporting features

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Question: 7

Evaluate the CREATE TABLE statement: CREATE TABLE products (product_id NUMBER(6) CONSTRAINT prod_id_pk PRIMARY KEY, product_name VARCHAR2(15)); Which statement is true regarding the PROD_ID_PK constraint? A. It would be created only if a unique index is manually created first. B. It would be created and would use an automatically created unique index. C. It would be created and would use an automatically created nonunique index. D. It would be created and remains in a disabled state because no index is specified...
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