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NEW QUESTION 45
Sales data of a company is stored in two tables, SALES1and SALES2, with some data being duplicated across the tables. You want to display the results from the SALES1table, which are not present in the SALES2table.
Which set operator generates the required output?
INTERSECT
- A. SUBTRACT
- B. UNION
- C.
- D. PLUS
- E. MINUS
Answer: A
Explanation:
Explanation/Reference:
References:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/queries004.htm
NEW QUESTION 46
View the exhibit and examine the structure of the STOREStable.
You want to display the NAME of the store along with the ADDRESS, START_DATE, PROPERTY_PRICE, and the projected property price, which is 115% of property price.
The stores displayed must have START_DATEin the range of 36 months starting from 01-Jan-2000 and above.
Which SQL statement would get the desired output?
SELECT name, concat (address| | ‘,’| |city| |’, ‘, country) AS full_address,
- A. start_date,
property_price, property_price*115/100
FROM stores
WHERE TO_NUMBER(start_date-TO_DATE(’01-JAN-2000′,’DD-MON-RRRR’)) <=36;
SELECT name, address||’,’||city||’,’||country AS full_address, - B. start_date,
property_price, property_price*115/100
FROM stores
WHERE MONTHS_BETWEEN (start_date, TO_DATE(’01-JAN-2000′,’DD-MON-RRRR’))
<=36; - C. start_date,
property_price, property_price*115/100
FROM stores
WHERE MONTHS_BETWEEN (start_date, ’01-JAN-2000′) <=36;
SELECT name, concat (address| | ‘,’| |city| |’, ‘, country) AS full_address, - D. start_date,
property_price, property_price*115/100
FROM stores
WHERE MONTHS_BETWEEN (start_date, TO_DATE(’01-JAN-2000′,’DD-MON-RRRR’))
<=36;
SELECT name, concat (address||’,’| |city| |’, ‘, country) AS full_address,
Answer: B
NEW QUESTION 47
View the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables.
You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 in the ORDERS table.
Which two DELETE statements are valid (Choose two.)
- A. DELETE *FROM order_itemsWHERE order_id IN (SELECT order_id)FROM ordersWHERE order_status IN (0,1));
- B. DELETEFROM order_itemsWHERE order_id IN (SELECT order_idFROM ordersWHERE orders_status in (0,1));
- C. DELETE FROM order_items iWHERE order_id = (SELECT order_id FROM orders oWHERE i.order_id = o.order_id AND order_status IN (0,1));
- D. DELETEFROM (SELECT * FROM order_items I,orders oWHERE i.order_id = o.order_id AND order_status IN (0,1));
Answer: B,D
NEW QUESTION 48
An Oracle database server session has an uncommitted transaction in progress which updated 5000 rows in a table.
In which three situations does the transactions complete thereby committing the updates? (Choose three.)
- A. when a CREATE INDEX statement is executed successfully in the same session
- B. when a DBA issues a successful SHUTDOWN IMMEDIATE statement and the user then issues a COMMIT
- C. when the session logs out successfully
- D. when a COMMIT statement is issued by the same user from another session in the same database instance
- E. when a DBA issues a successful SHUTDOWN TRANSACTIONAL statement and the user then issues a COMMIT
- F. when a CREATE TABLE AS SELECT statement is executed unsuccessfully in the same session
Answer: A,B,C
NEW QUESTION 49
These are the steps for a correlated subquery, listed in random order:
* The WHERE clause of the outer query is evaluated.
* A candidate row is fetched from the table specified in the outer query.
* This is repeated for the subsequent rows of the table, until all the rows are processed.
* Rows are returned by the inner query, after being evaluated with the value from the candidate row in the outer query.
Which is the correct sequence in which the Oracle server evaluates a correlated subquery?
- A. 4, 1, 2, 3
- B. 2, 4, 1, 3
- C. 4, 2, 1, 3
- D. 2, 1, 4, 3
Answer: B
Explanation:
Explanation
http://rajanimohanty.blogspot.co.uk/2014/01/correlated-subquery.html
NEW QUESTION 50
……
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