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Oracle Database SQL Sample Questions (Q275-Q280):

NEW QUESTION # 275
View the Exhibit and examine the description of the tables.

You execute this SQL statement:

Which three statements are true?

A. The statement will fail because a subquery may not be contained in a VALUES clause.
B. The statement will fail if a row already exists in the SALES table for product 23.
C. A product can have a different unit price at different times.
D. The statement will execute successfully and a new row will be inserted into the SALES table.
E. The SALES table has five foreign keys.
F. A customer can exist in many countries.

Answer: D,E,F

NEW QUESTION # 276
Examine the structure of the INVOICEtable.

Which two SQL statements would execute successfully?

A. SELECT inv_no, NVL2(inv_date, sysdate-inv_date, sysdate)
FROM invoice;
B. SELECT inv_no, NVL2(inv_date, 'Pending', 'Incomplete')
FROM invoice;
C. SELECT inv_no, NVL2(inv_amt, inv_date, 'Not Available')
FROM invoice;
D. SELECT inv_no, NVL2(inv_amt, inv_amt*.25, 'Not Available')
FROM invoice;

Answer: A,B

NEW QUESTION # 277
Examine this SELECT statement and view the Exhibit to see its output: (Choose two.) SELECT constraints_name, constraints_type, search_condition, r_constraints_name, delete_rule, status, FROM user_constraints WHERE table_name = 'ORDERS'; Which two statements are true about the output?

A. The R_CONSTRAINT_NAME column contains an alternative name for the constraint.
B. The DELETE_RULE column indicates the desired state of related rows in the child table when the corresponding row is deleted from the parent table.
C. In the second column, 'c' indicates a check constraint.
D. The STATUS column indicates whether the table is currently in use.

Answer: B,C

NEW QUESTION # 278
View the Exhibit and examine the details of PRODUCT_INFORMATION table.
PRODUCT_NAME
CATEGORY_ID
SUPPLIER_ID
Inkjet C/8/HQ
12
102094
Inkjet C/4
12
102090
LaserPro 600/6/BW
12
102087
LaserPro 1200/8/BW
12
102099
Inkjet B/6
12
102096
Industrial 700/ID
12
102086
Industrial 600/DQ
12
102088
Compact 400/LQ
12
102087
Compact 400/DQ
12
102088
HD 12GB /R
13
102090
HD 10GB /I
13
102071
HD 12GB @7200 /SE
13
102057
HD 18.2GB @10000 /E
13
102078
HD 18.2GB @10000 /I
13
102050
HD 18GB /SE
13
102083
HD 6GB /I
13
102072
HD 8.2GB@5400
13
102093
You have the requirement to display PRODUCT_NAME from the table where the CATEGORY_ID column has values 12 or 13, and the SUPPLIER_ID column has the value 102088. You executed the following SQL statement:
SELECT product_name
FROM product_information
WHERE (category_id = 12 AND category_id = 13) AND supplier_id = 102088; Which statement is true regarding the execution of the query?

A. It would execute and the output would display the desired result.
B. It would not execute because the same column has been used in both sides of the AND logical operator to form the condition.
C. It would execute but the output would return no rows.
D. It would not execute because the entire WHERE clause condition is not enclosed within the parentheses.

Answer: C

NEW QUESTION # 279
Which three actions can you perform only with system privileges?

A. Use the WITH GRANT OPTION clause.
B. Log in to a database.
C. Access flat files via a database, which are stored in an operating system directory.
D. Truncate a table in another schema.
E. Query any table in a database.
F. Execute a procedure in another schema.

Answer: B,C,D

Explanation:
A). Correct. Truncating a table, especially in another schema, requires the ALTER ANY TABLE or DROP ANY TABLE system privilege. B. Correct. Accessing external files through the database involves the CREATE ANY DIRECTORY privilege, which is a system privilege. C. Correct. Creating a session in a database, which is required to log in, necessitates the CREATE SESSION system privilege. D. Incorrect.
Querying any table is an object privilege, which can be granted by the owner of the table. E. Incorrect. The WITH GRANT OPTION clause is used with object privileges, not system privileges. F. Incorrect. Executing a procedure in another schema requires the EXECUTE object privilege on that procedure.
Oracle Database Security Guide provides the details about system privileges necessary for these actions.

NEW QUESTION # 280
......

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