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Oracle9i program with pl/sql Sample Questions:

1. When using a PL/SQL stored package, how is a side effect defined?

A) changes to database tables or packaged variables defined in a package specification
B) changes to database tables or packaged public variables defined in a package body
C) changes only to packaged public variables defined in a package specification
D) changes only to database tables
E) changes only to packaged public variables defined in a package body

2. Which view displays indirect dependencies, indenting each dependency?

A) INDENT_TREE
B) DEPTREE
C) IDEPTREE
D) I_DEPT_TREE

3. Why do you use an INSTEAD OF trigger?

A) To insert data into a view that normally does not accept inserts.
B) To perform clean up actions when ending a user session.
C) To modify data in which the DML statement has been issued against an inherently nonupdateable view.
D) To insert into an audit table when data is updated in a sensitive column.

4. You create a DML trigger. For the timing information, which are valid with a DML trigger?

A) BEFORE
B) ON SHUTDOWN
C) DURING
D) IN PLACE OF
E) ON STATEMENT EXECUTION

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

Solutions: