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Download Oracle Database SQL Exam Dumps
NEW QUESTION 44
Examine the structure of the BOOKS_TRANSACTIONStable:
You want to display the member IDs, due date, and late fee as $2 for all transactions.
Which SQL statement must you execute?
SELECT member_id AS MEMBER_ID, due_date AS DUE_DATE, $2 AS LATE_FEE FROM
- A. FROM BOOKS_TRANSACTIONS;
- B. BOOKS_TRANSACTIONS;
SELECT member_id ‘MEMBER ID’, due_date ‘DUE DATE’, ‘$2 AS LATE FEE’ FROM - C. FROM BOOKS_TRANSACTIONS;
SELECT member_id AS “MEMBER ID”, due_date AS “DUE DATE”, $2 AS “LATE FEE” - D. BOOKS_TRANSACTIONS;
SELECT member_id AS “MEMBER ID”, due_date AS “DUE DATE”, ‘$2’ AS “LATE FEE”
Answer: C
NEW QUESTION 45
View the Exhibit and examine the data in EMPand DEPTtables.
In the DEPTtable, DEPTNOis the PRIMARY KEY.
In the EMPtable, EMPNOis the PRIMARY KEYand DEPTNOis the FOREIGN KEYreferencing the DEPTNO column in the DEPTtable.
What would be the outcome of the following statements executed in the given sequence?
DROP TABLE emp;
FLASHBACK TABLE emp TO BEFORE DROP;
INSERT INTO emp VALUES (2, ‘SCOTT’, 10);
INSERT INTO emp VALUES (3, ‘KING’, 55);
- A. Only the SECOND INSERTstatement would succeed because all the constraints except referential integrity constraints that reference other tables are retrieved automatically after the table is flashed back.
- B. Both the INSERTstatements would succeed because none of the constraints on the table are automatically retrieved when the table is flashed back.
- C. Both the INSERTstatements would fail because the constraints are automatically retrieved when the table is flashed back.
- D. Only the first INSERTstatement would succeed because all constraints except the primary key constraint are automatically retrieved after a table is flashed back.
Answer: A
NEW QUESTION 46
View the exhibit and examine the description of the DEPARTMENTSand EMPLOYEEStables.
You wrote this SQL statement to retrieve EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT NAME, for all employees:
SELECT employee_id, first_name, department_name
FROM employees
NATURAL JOIN departments;
The desired output is not obtained after executing the above SQL statement. What could be the reason for this?
- A. The table prefix is missing for the column names in the SELECTclause.
- B. The DEPARTMENTStable is not used before the EMPLOYEEStable in the FROMclause.
- C. The NATURAL JOINclause is missing the USINGclause.
- D. The EMPLOYEESand DEPARTMENTStables have more than one column with the same column name and data type.
Answer: D
Explanation:
Natural join needs only one column to be the same in each table. The EMPLOYEESand DEPARTMENTStables have two columns that are the same (Department_ID and Manager_ID)
NEW QUESTION 47
The PRODUCT_INFORMATIONtable has a UNIT_PRICEcolumn of data type NUMBER (8, 2).
Evaluate this SQL statement:
SELECT TO_CHAR(unit_price, ‘$9,999’) FROM product_information;
Which two statements are true about the output? (Choose two.)
- A. A row whose UNIT_PRICEcolumn contains the value 1023.99will be displayed as $1,023.
- B. A row whose UNIT_PRICEcolumn contains the value 10235.99will be displayed as $1,0236.
- C. A row whose UNIT_PRICEcolumn contains the value 10235.99will be displayed as #######.
- D. A row whose UNIT_PRICEcolumn contains the value 1023.99will be displayed as $1,024.
- E. A row whose UNIT_PRICEcolumn contains the value 10235.99will be displayed as $1,023.
Answer: A,C
NEW QUESTION 48
Which statement is true regarding the INTERSECToperator?
- A. Reversing the order of the intersected tables alters the result.
- B. The number of columns and data types must be identical for all SELECTstatements in the query.
- C. It ignores NULLvalues.
- D. The names of columns in all SELECTstatements must be identical.
Answer: B
Explanation:
Explanation/Reference:
Explanation:
INTERSECT Returns only the rows that occur in both queries’ result sets, sorting them and removing duplicates.
The columns in the queries that make up a compound query can have different names, but the output result set will use the names of the columns in the first query.
NEW QUESTION 49
……
