Re: RE: tuple relational calculus

Im working on a Masters in Software Engineering and I want to take a Datewarehouse/Data Mining class in the fall and they are big on theory. I want to skip the Intro to databases since I know 75% of what they teach. I dont know the relational theory stuff at all. I got the book.

how hard is this stuff to pick up on your own? I had discrete math last year so I know basic(very basic) set theory. I know its not that useful, unless I get interviewed by some other geek with a masters then I can make myself sound smarter than I really am.

Just picture going into an interview and they ask me to make a SQL statement and I do something like on that web page. Would you hire me? :)

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Monday, April 21, 2003 5:46 PM

> I did tuple relational calculus in school (Ms CIS). It just made my
> brain hurt, served no practical purpose other than an academic exercise.
> It is useful if you need to prove you're sql statements mathematically.
> Take a look at this url:
>
>
>

http://www.cs.sfu.ca/CC/354/zaiane/material/notes/Chapter3/node12.html#SECTI ON00131000000000000000
>
>
>
> ...JIM...
>
> >>> rgaffuri_at_cox.net 4/21/03 3:57:40 PM >>>
> does anyone here actually know relational algebra and relational
> calculus that Codd used to model the relational DB? I just started
> flipping through a book on it. Interesting stuff... you need to have
> knowledge of relational theory to get it(its really basic stuff). Slow
> reading though.
>
> anyone find it useful?
> >
> > From: "Goulet, Dick" <DGoulet_at_vicr.com>
> > Date: 2003/04/21 Mon PM 04:27:16 EDT
> > To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> > Subject: RE:
> >
> > Y'all better, with out DR. Codd we'd all be out of a job!!
> >
> > Dick Goulet
> > Senior Oracle DBA
> > Oracle Certified 8i DBA
> >
> > -----Original Message-----
> > Sent: Monday, April 21, 2003 3:27 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > "Goulet, Dick" <DGoulet_at_vicr.com> said:
> >
> > > FATHER OF RELATIONAL DATABASE MODEL HAS DIED | Mercury News
> > > The father of the relational database model is dead. Edgar F. Codd,
> a
> > > former IBMer, died over the weekend. He was 79. Before Codd's 1970
> > > research paper laying out the principles of the relational model,
> > > analyzing large amounts of data was difficult.
> > >
> >
> > Next week, at IOUGA, I'll have to remember to toast his memory.
> >
> > --Glenn
> >
> >
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> Author: <rgaffuri_at_cox.net
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  INET: rgaffuri_at_cox.net

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