From brian.mcgraw@infinity-insurance.com Tue, 21 Aug 2001 11:37:07 -0700 From: "Brian McGraw" Date: Tue, 21 Aug 2001 11:37:07 -0700 Subject: Re: How do they get the answer? Message-ID: MIME-Version: 1.0 Content-Type: text/plain It's possible, but not the only possibility.  Therefore you can't answer A. And if you're not certain, you can't answer the question.  Because this is the Oracle OCP exam.  The thing that you've studied night and day for.  Everything you learned in the two-night class preparing you for database administration and nuclear physics.  This is crunch time, baby - right or wrong?  You make the call.  Pressure's on.  Which will it be?  What if this is the question that will put me under that passing grade.  A or C?  A or C?  Which will it be?  What will I do?????  You want the truth?  You want the truth?  You can't handle the truth!!!!!!!!!!!!! I'm heading back to the espresso machine now... Brian JOE TESTA wrote:  i still stand by(reading into the question) that it could be only 2 teachers get a raise, if the same 2 teachers teach both of those courses.  would they get twice as much of a raise? :) joe  >>> jonw@fuse.net 08/21/01 12:52PM >>> in the where clause, the IN says "any teachers that are in any of these subjects. Since there are two subjects in the IN set and at least 2 teachers have to teach each subject, 2*2=4. Basic mathematics: at least 4 teachers will get a raise. Jon Walthour > > From: kjanusz@att.net > Date: 2001/08/21 Tue PM 12:25:54 EDT > 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@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@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). >   -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jon Walthour   INET: jonw@fuse.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@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). -- -------------------------------------- | Brian McGraw     --     Oracle DBA | | Central Alabama Oracle Users Group | |------------------------------------| | mailto:BMcGraw@mindspring.com      | | http://bmcgraw.home.mindspring.com | --------------------------------------