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Oracle Database SQL Sample Questions (Q135-Q140):

NEW QUESTION # 135
View the Exhibit and examine the data in ORDERS and ORDERITEMS tables.
You need to create a view that displays the ORDER ID, ORDERDATE, and the total number of items in each order.

Which CREATE VIEW statement would create the view successfully?

  • A. CREATE OR REPLACE VIEW ordvu (orderid,orderdate)
    AS SELECT o.order    id, o.orderdate, COUNT(i.lineitemid)
    "NO OF ITEMS"
    FROM orders o JOIN order    items i
    ON (o.orderid = i.orderid)
    GROUP BY o.orderid,o.orderdate;
  • B. CREATE OR REPLACE VIEW ordvu
    AS SELECT o.order    id, o.orderdate, COUNT(i.lineitemid)
    "NO OF ITEMS"
    FROM orders o JOIN order    items i
    ON (o.orderid = i.orderid)
    GROUP BY o.orderid,o.orderdate;
  • C. CREATE OR REPLACE VIEW ordvu
    AS SELECT o.order    id, o.orderdate, COUNT(i.lineitemid)ll' NO OF ITEMS'
    FROM orders o JOIN order    items i
    ON (o.orderid = i.orderid)
    GROUP BY o.orderid,o.orderdate
    WITH CHECK OPTION;
  • D. CREATE OR REPLACE VIEW ordvu
    AS SELECT o.order    id, o.orderdate, COUNT(i.lineitemid)
    FROM orders o JOIN order    items i ON (o.orderid = i.orderid)
    GROUP BY o.orderid,o.orderdate;

Answer: B
NEW QUESTION # 136
Which three privileges can be restricted to a subset of columns in a table? (Choose three.)

  • A. UPDATE
  • B. ALTER
  • C. INDEX
  • D. DELETE
  • E. INSERT
  • F. SELECT
  • G. REFERENCES

Answer: A,D,F Explanation:
Explanation
NEW QUESTION # 137
Examine the structure of the MARKS table:

Which two statements would execute successfully? (Choose two.)

  • A. SELECT SUM(subject1+subject2+subject3)FROM marksWHERE student_name IS NULL;
  • B. SELECT studentname,SUM(subject1)FROM marksWHERE studentname LIKE 'R%';
  • C. SELECT SUM(DISTINCT NVL(subject1,0)), MAX(subject1)FROM marksWHERE subject1 > subject2;
  • D. SELECT student_name subject1FROM marksWHERE subject1 > AVG(subject1);

Answer: A,C
NEW QUESTION # 138
Which two statements are true about Data Manipulation Language (DML) statements?

  • A. An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.
  • B. A DELETE FROM..... statement can remove multiple rows based on multiple conditions on a table.
  • C. A DELETE FROM..... statement can remove rows based on only a single condition on a table.
  • D. An INSERT INTO...VALUES.. statement can add multiple rows per execution to a table.
  • E. An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.
  • F. An UPDATE... SET... statement can modify multiple rows based on multiple conditions on a table.

Answer: B,F Explanation:
Explanation
References:
http://www.techonthenet.com/sql/andor.php
NEW QUESTION # 139
The SALES table has columns PRODIDand QUANTITY_SOLDof data type NUMBER.
Which two queries execute successfully?

  • A. SELECT COUNT(prodid) FROM sales GROUP BY prodid WHERE quantity_sold > 55000;
  • B. SELECT prodid FROM sales WHERE quantitysold > 55000 AND COUNT() > 10 GROUP
    BY COUNT(    ) >10;
  • C. SELECT prodid FROM sales WHERE quantitysold > 55000 GROUP BY prod_id HAVING
    COUNT(*) >10;
  • D. SELECT COUNT (prodid) FROM sales WHERE quantitysold > 55000 GROUP BY
    prod_id;
  • E. SELECT prodid FROM sales WHERE quantitysold > 55000 AND COUNT() > 10 GROUP
    BY prod_id HAVING COUNT(    ) >10;

Answer: C,D
NEW QUESTION # 140
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