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Oracle9i program with pl/sql Sample Questions:

1. Which two describe a stored procedure? (Choose two)

A) The executable section of a stored procedure contains statements that assigns values, control execution, and return values to the calling environment.
B) A stored procedure is a named PL/SQL block that can accept parameters.
C) A stored procedure is typically written in SQL.
D) A stored procedure is a type of PL/SQL subprogram that performs an action.
E) A stored procedure has three parts: the specification, the body, and the exception handler part.

2. 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 only if the two parameters passed in are not null values.
D) This function can be used against any table.
E) This function is invalid.
F) This function will generate a string based on 2 character values passed into the function.

3. Examine this code:
CREATE OR REPLACE PRODECURE add_dept (p_dept_name VARCHAR2 DEFAULT 'placeholder', p_location VARCHAR2 DEFAULT 'Boston')
IS BEGIN INSERT INTO departments VALUES (dept_id_seq.NEXTVAL, p_dept_name, p_location); END add_dept; /
Which three are valid calls to the add_dep procedure? (Choose three)

A) add_dept;
B) add_dept('Accounting');
C) add_dept(, 'New York');
D) add_dept(p_location=>'New York');

4. Examine this code:
CREATE OR REPLACE TRIGGER secure_emp BEFORE LOGON ON employees BEGIN IF (TO_CHAR(SYSDATE, 'DY') IN ('SAT', 'SUN')) OR (TO_CHAR(SYSDATE, 'HH24:MI') NOT BETWEEN '08:00' AND '18:00') THEN RAISE_APPLICATION_ERROR (-20500, 'You may insert into the EMPLOYEES table only during business hours.'); END IF; END; / What type of trigger is it?

A) DML trigger
B) System event trigger
C) Application trigger
D) INSTEAD OF trigger
E) This is an invalid trigger.

5. Which two statements about packages are true? (Choose two)

A) The specification and body of the package are stored together in the database.
B) The specification and body of the package are stored separately in the database.
C) The package specification is required, but the package body is optional.
D) The package specification is optional, but the package body is required.
E) Both the specification and body are required components of a package.

Solutions: