It is for the same reason that 'select empno from emp' without and order by, also returns the same results.
Take a look at $ORACLE_HOME/sqlplus/demo/demobld.sql Didn't you ask this same question earlier this week? Jared On Thu, 2004-01-01 at 01:14, [EMAIL PROTECTED] wrote: > List can you please explain to me why > > select empno from emp > order by empno ; > > is the same as > > select empno from emp > order by sqrt(3.14); > > but not the same as > > select empno from emp > order by dbms_random.value; > > What does sort by a random value do ? and why isn't dbms_random.value in > the documentation for 9i Release 2 ? > > ----- Original Message ----- > To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> > Sent: Monday, December 29, 2003 03:34 > > > > [EMAIL PROTECTED] wrote: > > > > > > Hello list, > > > Can someone please explain to me why the following order by clauses are > > > valid and yield the same results : > > > > > > select empno, deptno from emp > > > order by sqrt (1) ; > > > > > > and > > > > > > select empno, deptno from emp > > > order by sqrt ( 3.14234 ) ; > > > > > > The docs say that in the order by clause you could specify only (a) > column > > > names or (b) positional parameters or (c) expressions involving the > columns > > > > > > > A constant falls under the c) category. It's an expression, which > > involves anything you want. That said, I fail to see any practical use > > . > > > > -- > > Regards, > > > > Stephane Faroult > > Oriole Software > > -- > > Please see the official ORACLE-L FAQ: http://www.orafaq.net > > -- > > Author: Stephane Faroult > > INET: [EMAIL PROTECTED] > > > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > > San Diego, California -- Mailing list and web hosting services > > --------------------------------------------------------------------- > > To REMOVE yourself from this mailing list, send an E-Mail message > > to: [EMAIL PROTECTED] (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.net > -- > Author: <[EMAIL PROTECTED] > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (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.net -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (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).
