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Re: Manually create array that matches mysql_fetch_array [message #179732 is a reply to message #179729]

Thu, 29 November 2012 14:24

Peter H. Coffin
Messages: 245
Registered: September 2010

Karma:

Senior Member

On Thu, 29 Nov 2012 00:51:04 -0800 (PST), Jason C wrote:

> In my script, I'm potentially creating information to insert in
> to MySQL (based on a few variables), then later in the script I'm
> SELECTing the same data back out of MySQL. Like this:

Stop a moment, back up, and start by describing what you want to
ACCOMPLISH, not what you want to do. Because it sounds like you have
Some Data (A + B), some of which (may) exist in a database (B + U), and
you want to have access to the most current of all of it (A + B + U)
efficiently. If that's the case, then it's not really redundant at all;
REPLACE INTO... (or, depending on your design, INSERT ... ON DUPLICATE
.... ) is the proper path, because something else could change part of
the data you thought "correct" between the time that you do the insert
and the time you get to pulling your result set (which should be right
before you want to use it).

--
23. I will keep a special cache of low-tech weapons and train my troops
in their use. That way--even if the heroes manage to neutralize my
standard-issue energy weapons useless--my troops will not be overrun
by a handful of savages armed with spears.

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[Message index]

		Manually create array that matches mysql_fetch_array By: jwcarlton on Thu, 29 November 2012 08:51
		Re: Manually create array that matches mysql_fetch_array By: Captain Paralytic on Thu, 29 November 2012 10:07
		Re: Manually create array that matches mysql_fetch_array By: Norman Peelman on Thu, 29 November 2012 13:35
		Re: Manually create array that matches mysql_fetch_array By: Peter H. Coffin on Thu, 29 November 2012 14:24
		Re: Manually create array that matches mysql_fetch_array By: Denis McMahon on Thu, 29 November 2012 20:26
		Re: Manually create array that matches mysql_fetch_array By: Denis McMahon on Fri, 30 November 2012 00:23

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