Orlando Andico writes:
> On Tue, 26 Jun 2001, Marcotullio, Angelo wrote:
> ..
> > In Oracle, the $sth->execute() builds the cursor and waits for the program
> > to start fetching records. The hints don't change this behavior, just the
> > access plan.
> ..
>
> Hrmmm... that's not what I've seen. I wrote some code which used
> Time::HiRes to measure the time taken at each step.. something like this:
>
> $t0 = [gettimeofday];
> $sth = $dbh->prepare ("SELECT * FROM TEN_MILLION_ROW_TABLE");
> print [gettimeofday] - $t0;
>
> $t0 = [gettimeofday];
> $sth->execute;
> # and so on..
>
> and definitely, the execute part took longest.. if what you're saying is
> true, execute would return immediately and let me fetch records at will.
> That does NOT happen. execute takes forever, THEN i can fetch records.
That's interesting - shouldn't such a select return *very* quickly? It
doesn't have to build a complex query plan, it just needs to follow
the page or row chain and return the rows in any order that it wants
to...
Michael
--
Michael Peppler - Data Migrations Inc. - [EMAIL PROTECTED]
http://www.mbay.net/~mpeppler - [EMAIL PROTECTED]
International Sybase User Group - http://www.isug.com
*Looking for new project to tackle starting 8/1/01*
- RE: Shorthand for $dbh->prepare and $sth->... Steven Lembark
- RE: Shorthand for $dbh->prepare and $sth->exec... Sterin, Ilya
- RE: Shorthand for $dbh->prepare and $sth->exec... Orlando Andico
- RE: Shorthand for $dbh->prepare and $sth->exec... Sterin, Ilya
- RE: Shorthand for $dbh->prepare and $sth->exec... Marcotullio, Angelo
- RE: Shorthand for $dbh->prepare and $sth->exec... Orlando Andico
- Re: Shorthand for $dbh->prepare and $sth->... Tommy Wareing
- Re: Shorthand for $dbh->prepare and $sth->... Michael A. Chase
- Re: Shorthand for $dbh->prepare and $sth->... Tim Bunce
- RE: Shorthand for $dbh->prepare and $sth->exec... Michael Peppler
- RE: Shorthand for $dbh->prepare and $sth->exec... Marcotullio, Angelo
- Re: RE: Shorthand for $dbh->prepare and $sth->... Ali Zaidi
- Re: Shorthand for $dbh->prepare and $sth->exec... Michael A Mayo
- Re: Shorthand for $dbh->prepare and $sth->exec... Philip Mak
- Re: Shorthand for $dbh->prepare and $sth->... Michael A Mayo
- RE: Shorthand for $dbh->prepare and $sth->exec... Sterin, Ilya
- RE: RE: Shorthand for $dbh->prepare and $sth->... Sterin, Ilya
- RE: Shorthand for $dbh->prepare and $sth->exec... Sterin, Ilya
- RE: RE: Shorthand for $dbh->prepare and $sth->... Marcotullio, Angelo
- Re: Shorthand for $dbh->prepare and $sth->exec... Tim Bunce
