RE: How do they get the answer?

From: Hallas John <John.Hallas_at_btcellnet.net>
Date: Tue, 21 Aug 2001 08:50:19 -0700
Message-ID: <F001.003728D7.20010821090306@fatcity.com>

My thoughts are

Typical OCP question.

a)  Could be the answer depending on if both the subjects are taught by the same 2 teachers
b) Cannot be the answer because only 2 subjects are mentioned (102,105)
c) Could be the answer if the 2 subjects are taught by 4 different teachers (not it cannot be more than 4 therefor the 'at least 4' is misleading

d) If a syntax error did occur you would correct and run again so why you should fail the OCP question for that reason is bizarre anyway.

 
John

-----Original Message-----
From: kjanusz_at_att.net [mailto:kjanusz_at_att.net] Sent: 21 August 01 17:26
To: Multiple recipients of list ORACLE-L Subject: How do they get the answer?

I am taking the Self-Test software test for the SQL exam and don't see how they get the answer to this problem.  They don't explain how it is arrived at.

Any help you can give me will be appreciated.

Thanks,
Ken Janusz, CPIM

---

Examine the structure of the TEACHER table:

Name                            Null?           Type
ID                              NOT NULL        NUMBER(9)
SALARY                                          NUMBER

(7,2)

SUBJECT_ID                      NOT NULL        NUMBER(3) SUBJECT_DESCRIPTION                     VARCHAR2(2) There are 200 teachers and 15 subjects.  Each subject is taught
by at least 2 teachers.

Evaluate this PL/SQL block:

DECLARE
        v_pct_raise             number := 1.10; BEGIN

        UPDATE          teacher
        SET             salary = salary * 1.10
        WHERE           subject_id IN (102, 105);
        COMMIT;

END; Which result will the PL/SQL block provide?

(A) Only two teachers will receive a 10% salary increase.
(B) All of the teachers will receive a 10% salary
increase.
(C) At least four teachers will receive a 10% salary
increase.
(D) A syntax error will occur.

Answer:
(C)

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: kjanusz_at_att.net


Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L


(or the name of mailing list you want to be removed from).  You may

also send the HELP command for other information (like subscribing).




**********************************************************************
This email and any attachments may be confidential and the subject of 
legal professional privilege.  Any disclosure, use, storage or copying 
of this email without the consent of the sender is strictly prohibited.
Please notify the sender immediately if you are not the intended 
recipient and then delete the email from your inbox and do not 
disclose the contents to another person, use, copy or store the 
information in any medium. 
**********************************************************************

Received on Tue Aug 21 2001 - 10:50:19 CDT