Question 1

View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.

You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.

Examine this SQL statement:

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Exhibit 1.

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Exhibit 2.

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What will be the result?

Options :

A : It gives an error because the ALL keyword is not valid

B : It gives an error because the GROUP BY clause is not valid

C : It executes successfully but does not give the required result

D : It executes successfully and gives the required result

Answer: D

Question 2

Which three statements are true concerning logical and physical database structures? (Choose three.)

Options :

A : All tablespaces may have one or more data files

B : The extents of a segment must always reside in the same datafile

C : A smallfile tablespace might be bigger than a bigfile tablespace

D : A segment can span multiple data files in some tablespaces

E : A segment-s blocks can be of different sizes

F : A segment might have only one extent

G : Segments can span multiple tablespaces

Answer: A,B,C

Question 3

Examine the description of the BOOKS table:

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The table has 100 rows.

Examine this sequence of statements issued in a new session:

INSERT INTO books VALUES ('ADV112', 'Adventures of Tom Sawyer', NULL, NULL);

SAVEPOINT a;

DELETE FROM books;

ROLLBACK TO SAVEPOINT a;

ROLLBACK;

Which two statements are true? (Choose two.)

Options :

A : The second ROLLBACK command does nothing

B : The second ROLLBACK command replays the delete

C : The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed

D : The second ROLLBACK command undoes the insert

E : The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row

Answer: C,D

Question 4

Evaluate these commands which execute successfully:

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Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)

Options :

A : If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS

B : Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ

C : Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO

D : Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times

E : Sequence ORD_SEQ is guaranteed not to generate duplicate numbers

Answer: B,C

Question 5

Examine the description of the employees table:

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Which query requires explicit data type conversion?

Options :

A :

B :

C :

D :

Answer: A

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