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Oracle9i program with pl/sql Sample Questions:

1. Which three are valid ways to minimize dependency failure? (Choose three)

A) Declaring variables with the %TYPE attribute.
B) Declaring records by using the %ROWTYPE attribute.
C) Specifying package.procedure notation while executing procedures.
D) Querying with the SELECT * notification.
E) Specifying schema names when referencing objects.

2. Examine this code:
CREATE OR REPLACE TRIGGER update_emp
AFTER UPDATE ON emp
BEGIN
INSERT INTO audit_table (who, dated)
VALUES (USER, SYSDATE);
END;
You issue an UPDATE command in the EMP table that results in changing 10 rows.
How many rows are inserted into the AUDIT_TABLE?

A) 10
B) A value equal to the number of rows in the EMP table.
C) 1
D) None

3. The add_player procedure inserts rows into the PLAYER table. Which command will show this directory dependency?

A) SELECT * FROM USER_DEPENDENCIES WHERE TYPE = 'DIR';
B) SELECT * FROM USER DEPENDENCIES WHERE REFERENCED_NAME = 'ADD_PLAYER';
C) SELECT * FROM USER_DEPENDENCIES WHERE REFERENCED_NAME = 'PLAYER';
D) SELECT * FROM USER DEPENDENCIES WHERE REFERENCED_NAME = 'TABLE';

4. Which two program declarations are correct for a stored program unit? (Choose two)

A) CREATE OR REPLACE PROCEDURE tax_amt
(p_id NUMBER)
RETURN NUMBER
B) CREATE OR REPLACE FUNCTION tax_amt
(p_id NUMBER)
RETURN NUMBER
C) CREATE OR REPLACE PROCEDURE tax_amt
(p_id NUMBER, p_amount OUT NUMBER(10, 2))
D) CREATE OR REPLACE FUNCTION tax_amt
(p_id NUMBER)
RETURN NUMBER(10,2)
E) CREATE OR REPLACE PROCEDURE tax_amt
(p_id NUMBER, p_amount OUT NUMBER)

5. Examine this code:
CREATE OR REPLACE FUNCTION gen_email_name
(p_first VARCHAR2, p_last VARCHAR2)
RETURN VARCHAR2
IS
v_email_name VARCHAR (19) ;
BEGIN
v_email_bame := SUBSTR(p_first, 1, 1) ||
SUBSTR(p_last, 1, 7) ||
RETURN v_email_name;
END;
/
Which two statements are true? Select two.

A) This function can be used only on tables where there is a p_first and p_last column.
B) This function cannot be used in a SELECT statement.
C) This function can be used against any table.
D) This function will generate a string based on 2 character values passed into the function.
E) This function can be used only if the two parameters passed in are not null values.
F) This function is invalid.

Solutions: