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Oracle Database SQL Sample Questions (Q189-Q194):

NEW QUESTION # 189
Which three statements are true regarding the SQL WHERE and HAVING clauses? (Choose three.)

  • A. The WHERE and HAVING clauses cannot be used together in a SQL statement.
  • B. The HAVING clause conditions can have aggregating functions.
  • C. The HAVING clause is used to exclude one or more aggregated results after grouping data.
  • D. The HAVING clause conditions can use aliases for the columns.
  • E. The WHERE clause is used to exclude rows before grouping data.

Answer: B,C,E


NEW QUESTION # 190
Examine the structure of the SALES table. (Choose two.)
Examine this statement:
SQL > CREATE TABLE sales1 (prod_id, cust_id, quantity_sold, price)
AS
SELECT product_id, customer_id, quantity_sold, price
FROM sales
WHERE 1 = 2;
Which two statements are true about the SALES1 table?

  • A. It will not be created because of the invalid WHERE clause.
  • B. It is created with no rows.
  • C. It will not be created because the column-specified names in the SELECT and CREATE TABLE clauses do not match.
  • D. It has PRIMARY KEY and UNIQUE constraints on the selected columns which had those constraints in the SALES table.
  • E. It will have NOT NULL constraints on the selected columns which had those constraints in the SALES table.

Answer: B,E


NEW QUESTION # 191
Examine the structure of the MARKS table:
Which two statements would execute successfully? (Choose two.)

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

Answer: B,C


NEW QUESTION # 192
View the exhibit and examine the structure in ORDERS and ORDER_ITEMS tables.
1z0-071-4dcdbf61d9709983b07c5cd3b7b9678b.jpg
You need to create a view that displays the ORDER_ID, ORDER_DATE, and the total number of items in each order.
Which CREATE VIEW statement would create the views successfully?

  • A. CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;
  • B. CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id) ||"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_dateWHITH CHECK OPTION;
  • C. CREATE OR REPLACE VIEW ord_vu (order_id, order_date)AS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;
  • D. CREATE OR REPLACE VIEW ord_vuAS SELECT o.order_id, o.order_date, COUNT (i.line_item_id)"NO OF ITEMS"FROM orders o JOIN order_items iON (o.order_id = i.order_id)GROUP BY o.order_id, o.order_date;

Answer: D


NEW QUESTION # 193
Which three tasks can be performed using SQL functions built into Oracle Database? (Choose three.)

  • A. Substituting a character string in a text expression with a specified string
  • B. Finding the number of characters in an expression
  • C. Displaying a date in a nondefault format
  • D. Combining more than two columns or expressions into a single column in the output

Answer: A,B,C


NEW QUESTION # 194
......

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