Re: Strange MySQL Problem

When I have done this type of task, I've broken it up into several discrete portions and stitched them together using a shell script. Right now, I have a daily load from a sub-optimally normalized Oracle database into a MySQL database (for generating reports). I use the following process:

Oracle's SQL*Plus connections kicked off from command-line to generate tab-delimited data files
A cleanup step to make sure all backslashes are backslashes, there's a \N for empty datafields, and the like. This a shell script that calls Perl in commandline.
MySQL's client is kicked off in batch mode. I have to do some massaging of the data, as well, so I need to use MySQL.

While all of those things could've been done in Perl, it's a lot quicker to do it in the native client. And, the reason I wrote the second step as a shell script around commandlines is that it's easier to do

#!/bin/sh

foreach f in *.xsv
loop
    perl -pi -e 's/asdf/jkl;/g' $f
endloop
[download]

than it is for me to open the file, loop through all the lines, and write the file back out. Why make it harder for yourself?

------
We are the carpenters and bricklayers of the Information Age.

Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

I shouldn't have to say this, but any code, unless otherwise stated, is untested

Comment on Re: Strange MySQL Problem Download Code

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Re^2: Strange MySQL Problem by tyndyll (Novice) on Aug 18, 2004 at 09:01 UTC
What is the best way to implement the shell script? I am using my desktop machine for this at the moment (proof of concept) so will hopefully be moving to a Linux server afterwards... Is there a method of doing this so I don't have to rewrite the script? Also, does anyone have any idea why the Insert is failing? I've tried using sleep to no avail. I have noticed however that the average row length is 582 when inserted using MySQL.. don't know if that helps at all..	[reply]
Re^3: Strange MySQL Problem by dragonchild (Archbishop) on Aug 18, 2004 at 14:07 UTC
Use Cygwin. ------ We are the carpenters and bricklayers of the Information Age. Then there are Damian modules.... sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon.* - flyingmoose I shouldn't have to say this, but any code, unless otherwise stated, is untested	[reply]


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