Oracle1Z0-047Oracle Database SQL Experthttp://killexams.com/exam-detail/1Z0-047
QUESTION: 270View the Exhibit and examine the structure for the ORDERS and ORDER ITEMS tables. Youwant to display ORDER ID, PRODUCT ID, and TOTAL (UNIT PRICE multiplied byQUANTITY) for all the orders placed in the last seven days. Which query would you execute?A. SELECT order id, product id, unit price*quantity "TOTAL" FROM order items oi JOINorders oON (o.order id oi.order id)WHERE o.order date SYSDATE-7;B. SELECT o.order id,oi.product id, oi.unit price*oi.quantity "TOTAL" FROM order items oiJOIN orders oUSING (order id)WHERE o.order date SYSDATE-7;C. SELECT o.order id, oi.product id, oi.unit price*oi.quantity "TOTAL" FROM order itemsoi JOIN orders oWHERE o.order date SYSDATE-7ON (o.order id oi.order id);D. SELECT o.order id, oi.product id, oi.unit price*oi.quantity "TOTAL" FROM order items oiJOIN orders oON (o.order id oi.order id)188
WHERE o.order date SYSDATE-7;Answer: DQUESTION: 271Which two statements are true regarding the types of table joins available in Oracle Database10g? (Choose two.)A.B.C.D.You can use the JOIN clause to join only two tables.You can explicitly provide the join condition with a NATURAL JOIN.You can use the USING clause to join tables on more than one column.You can use the ON clause to specify multiple conditions while joining tables.Answer: C, DQUESTION: 272Which two statements are true regarding subqueries? (Choose two.)A. The ORDER BY clause can be used in the subquery.B. A subquery can be used in the FROM clause of a SELECT statement.C. If the subquery returns NULL, the main query may still return result rows.D. A subquery can be placed in a WHERE clause, GROUP BY clause, or a HAVING clause.E. Logical operators, such as AND, OR and NOT, cannot be used in the WHERE clause of asubquery.Answer: A, BQUESTION: 273Evaluate the following SQL statements in the given order:DROP TABLE dept;CREATE TABLE dept(deptno NUMBER(3) PRIMARY KEY, deptname VARCHAR2(10));DROP TABLE dept;FLASHBACK TABLE dept TO BEFORE DROP;Which statement is true regarding the above FLASHBACK operation?189
A. It recovers only the first DEPT table.B. It recovers only the second DEPT table.C. It does not recover any of the tables because FLASHBACK is not possible in this case.D. It recovers both the tables but the names would be changed to the ones assigned in theRECYCLEBIN.Answer: BQUESTION: 274Given below is a list of functions and their purpose in random order.FunctionPurpose1)NVLa) Used for evaluating NOT NULL and NULL values2)NULLIFb) Used to return the first non- null values in a list of expressions3)COALESCEc) Used to compare two expressions. If both are same, it returns NULL;otherwise, it returns only the first expression.4)NVL2d) Used to convert NULL values to actual valuesIdentify the correct combination of functions and their usage.A.B.C.D.1-a, 2-c, 3-b, 4-d1-d, 2-c, 3-b, 4-a1-b, 2-c, 3-d, 4-a1-d, 2-b, 3-c, 4-aAnswer: BQUESTION: 275Which 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 asarguments.Answer: D, E, F190
QUESTION: 276View the Exhibit and examine the description of the ORDERS table. Which two WHERE clauseconditions demonstrate the correct usage of conversion functions? (Choose two.)A. WHERE order date TO DATE('JUL 10 2006','MON DD YYYY')B. WHERE TO CHAR(order date,'MON DD YYYY') 'JAN 20 2003'C. WHERE order date TO CHAR(ADD MONTHS(SYSDATE,6),'MON DD YYYY')D. WHERE order date IN ( TO DATE('Oct 21 2003','Mon DD YYYY'), TO CHAR('NOV 212003','Mon DD YYYY') )Answer: A, BQUESTION: 277View the Exhibit and examine the data in the CUST DET table. You executed the followingmultitable INSERT statement:191
INSERT FIRSTWHEN credit limit 5000 THENINTO cust 1 VALUES(cust id, credit limit, grade, gender) WHEN grade THEINTO cust 2 VALUES(cust id, credit limit, grade, gender) WHEN gender THEINTO cust 3 VALUES(cust id, credit limit, grade, gender)INTO cust 4 VALUES(cust id, credit limit, grade, gender) ELSEINTO cust 5 VALUES(cust id, credit limit, grade, gender) SELECT * FROM cust det;The row will be inserted in .A. CUST 1 table only because CREDIT LIMIT condition is satisfiedB. CUST 1 and CUST 2 tables because CREDIT LIMIT and GRADE conditions are satisfiedC. CUST 1,CUST 2 and CUST 5 tables because CREDIT LIMIT and GRADE conditions aresatisfied but GENDER condition is not satisfiedD. CUST 1, CUST 2 and CUST 4 tables because CREDIT LIMIT and GRADE conditions aresatisfied for CUST 1 and CUST 2, and CUST 4 has no condition on itAnswer: AQUESTION: 278Evaluate the following statements:CREATE TABLE digits(id NUMBER(2),description VARCHAR2(15));INSERT INTO digits VALUES (1,'ONE');UPDATE digits SET description 'TWO' WHERE id 1; INSERT INTO digits VALUES(2,'TWO');COMMIT;DELETE FROM digits;SELECT description FROM digitsVERSIONS BETWEEN TIMESTAMP MINVALUE AND MAXVALUE;What would be the outcome of the above query?192
A.B.C.D.It would not display any values.It would display the value TWO once.It would display the value TWO twice.It would display the values ONE, TWO, and TWO.Answer: C193
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