Re: How to import data from Dbase3?

2005-03-23 Thread Peter L. Berghold
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BG Mahesh wrote:
 Actually I prefer to dump the dbase file on a Linux machine and directly 
 import it into MySQL.
 
 

There are a bunch of ways of skinning that cat.  The easiest of which
IMHO is to convert the data to comma separated files first and then use
any one of a number of means to get it into the database.




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Re: how to insert blob data remotely

2004-07-01 Thread Peter L. Berghold
On Thu, 2004-07-01 at 11:06, Héctor Maldonado wrote:
 But LOAD_FILE only works if 'picture.jpg' is placed on the same machine
 where the server is running.
 

That makes sense. You could of course NFS mount from the remote machine
to the machine you are working from but that is much the same thing.

Alternatively if you are working in a language like Perl there are other
tricks you can play...

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Re: batch mode

2003-07-29 Thread Peter L. Berghold
On Tue, 2003-07-29 at 15:19, azamka wrote:
 
 [EMAIL PROTECTED] usr]# mysql security  select *  from machine;
 -bash: select: No such file or directory
 


EEK! What you told the shell to do was open a file called select and
redirect it to mysql. 

What you meant to do was echo 'select * from machine' | mysql security


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Re: mysqld shows high cpu usage over extended time, restart = normal

2003-07-09 Thread Peter L. Berghold
On Wed, 2003-07-09 at 10:31, Dave [Hawk-Systems] wrote:
  Is there a known issue (running on FreeBSD 4.8, MySQL 3.23.55 MyISAM)?
 Is there something I should check when next I notice the high CPU usage?
 

I used to see the same kind of behavior a while back with a MySQL
installation I did for a client. It turned out that what was happening
was a poorly designed client/server app was touching off this really
huge query (lots of rows and lots of columns across multiple tables) and
then disconnecting before the result could be returned. 

They fixed their app and the problem went away. Drove me nuts
troubleshooting it. 

Anyway. Make sure you don't have something similar going on. 

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Re: Your professional opinion Please...

2003-03-25 Thread Peter L. Berghold
On Mon, Mar 24, 2003 at 06:41:07PM -0800, Brian wrote:
 I have a client with approximately 2 gigabytes of un-indexed document files
 (includes text and graphics).
 
 He wants to be able to enter a few parameters and bring up a list of all

If they are flat text files this should not be too big an issue although
a very large project nonetheless. Develop an index by yanking out keywords
of interest and devloping a table to index them either by filename 
title or whatever.

I'd leave them as flat text files and go from there. If they are adding
or removing from the library then do a re-index at an interval that 
makes sense. 

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Re: Your professional opinion Please...

2003-03-25 Thread Peter L. Berghold
On Tue, 2003-03-25 at 18:11, Brian wrote:

 
 What mechanism do you recommend?
 
 Something in perl, python or php?
 

Well... I tend to be a Perl bigot so I'd choose Perl. I would do a
couple of things. 

1) I'd develop a list of words to ignore such as and, if ,but etc.
etc..  This may take time and iterations. 

2) Read each file in and split on word boundaries and tally the words
that are not in the exclusion list and theoretically what is left will
be keywords. 

3) Use the number of times that a keyword is found in each flat text
file as a weight to be used later as a scoring mechanism for the
search to determine relevance. 

4) Write all this to a table. Once all the documents are scanned THEN 
build your index. 

 Are their prebuilt modules that would develop such an index?
 

I don't know for sure, check CPAN (www.cpan.org) and see. There may well
be as I'm sure someone else has had to do this before. 


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Re: How to Retreive Web Links from MySQL to HTML ???

2002-11-22 Thread Peter L. Berghold
On Fri, 2002-11-22 at 10:40, tmb wrote:
 I want to store some web links in a MySQL db...
 
 than later using PHP retreive them and put them on a
 web page...
 
 Does PHP have to do all the work here...
 

Personally I would use Perl to do this.. :-P :-)

Yeah... you're going to have to write an app for this. MySql just ain't
gonna do all that for ya.
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Solaris 8 and gcc

2001-11-02 Thread Peter L. Berghold

Hi folks,

I'm trying to compile mysql on a Solaris 8 box with gcc. When I run 
compile for reasons I do not understand configure thinks the g++ compiler
is running as a cross compiler which it is not. This causes the test 
for the return type of sprintf to fail with the message can not run 
test program while cross compiling.

Has anyone else run into this or am I special? Is there a fix/workaround?

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Re: problems getting asp to talk to mysql

2001-06-07 Thread Peter L. Berghold

At 05:46 PM 6/7/2001 +0100, michael.mansfield wrote:
my isp olm.net are not helping.

what needs to be installed on a unix server to enable an asp page to talk 
to mysql please.

OK: is the ASP running on Unix as well?  Who's flavor ASP is it? ChiliSoft?



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Re: can i keep a connection to the database open

2001-06-07 Thread Peter L. Berghold

At 07:05 PM 6/7/2001 +0530, Harsh wrote:
i want to write a web-based chat application in Perl which runs on Unix
server with mySQL as backend. The application needs to continouly
interact with database hence instead of opening a DBI connection in each
perl page, I wish to keep a live open connection with database. Is it
possible ? If yes, how ?


What web server are you using?


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Re: heavy load configuration

2001-05-26 Thread Peter L. Berghold

At 06:34 PM 5/26/2001 +0200, P.Agenbag wrote:


How will I know if my server is up to it, or should I rather say, how
many consecutive users will this box be able to handle? The line
shouldn't be a problem, I think it sits on a couple of 100 MB/s line.


Well.. this is one topic I sorta specialize in.  Off the bat you look like 
you have a machine that should be able to handle quite a load without 
barfing. The two areas I'd be interested in getting more metrics on would 
be your RAM utilization and a profile of your I/O to and from the disks 
where you have your tablespace. Without those metrics any advise I would 
give you is just crystal gazing.

In the area of RAM I normally put as much RAM in a machine that can until 
it is can't take any more if I am running a database that is expected to 
deal with large queries or lots of small ones. Again, without some sort of 
metric to work with in terms of what your queries look like and what you 
actually mean by high traffic.

Disk drives I like to put on some sort of RAID when I am thinking of either 
high throughput or a need for reliablity. Hot swap drives in a hardware 
raid box are the best way to go.  IMHO and AFAIR Raid-5 is to be avoided 
for databases with a high degree of read-modify-write transactions built 
into the application or even just high write.  With RAID-5 you pay a write 
penalty in terms of performance because of the fact that parity 
calculations take some overhead. The exception to this rule is where you 
have large caches front ending your RAID box. Even here there is cause for 
concern in the reliability arena as there have been known to be problems 
with data getting corrupted in a database when cache was not properly 
destaged after a write.

I could on forever on this subject, but I'll stop here.



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Re: Advice on Random Numbers

2001-05-23 Thread Peter L. Berghold

On Wed, May 23, 2001 at 02:22:02PM -0400, Dave Carter spake thusly:
*] I need to generate a RANDOM UNIQUE number for every new record. Is there an
*] easy way to accomplish this inside of mySQL.
*] 

The way I do this for session ids is through a perl function that I 
wrote a long time ago.  Essentially I create a really long string of 
mixed case alpha characters and numeric digits. 

I suppose you could use the same method from perl for record numbers.


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Re: Telnet into MySQL

2001-05-21 Thread Peter L. Berghold

On Mon, May 21, 2001 at 03:21:10PM -0500, Tim Thorburn spake thusly:
*] Can someone here recommend a good Telnet program (with SSH) that I can use 
*] to connect to my servers MySQL database?
*] 
Tim,

You don't use telnet to connect to the MySQL database... You use the 
mysql client

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Re: need help

2001-05-17 Thread Peter L. Berghold

On Thu, May 17, 2001 at 06:36:23AM -0700, mansoor spake thusly:
*] i m new to mysql, how i can convert a string 28-MAR-2001 to date
*] 

In what language? 

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Re: telnet MySQL

2001-05-14 Thread Peter L. Berghold

On Mon, May 14, 2001 at 07:26:44AM -0700, Shtykh Roman spake thusly:
*] telnet grdmss57 3030

Can you connect to the database through a normal client? 

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