RE: [PHP-DB] Relational database
Try this:
SELECT ccsd.Description, ccsd.Impact, ccsd.Isolation FROM ccsd, log WHERE
ccsd.logccsd=log.logccsd;
You cannot specify a database is = to a row...
Thank you,
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-Original Message-
From: Ron [mailto:[EMAIL PROTECTED]]
Sent: Thursday, March 21, 2002 6:32 AM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] Relational database
I am trying to get fields from 2 different tables that have the same field
name to pull the records from one table For example
mysql_connect($DBhost,$DBuser,$DBpass) or die(Unable toconnect to
database);
@mysql_select_db($DBName) or die(Unable to select database $DBName);
$sqlquery1 = mysql_query(SELECT Description, Impact, Isolation . FROM
ccsd, log WHERE ccsd=log.logccsd);
while ($query = mysql_fetch_array($sqlquery1)) {
$CCSD = $query[CCSD];
$Description = $query[Description];
$Impact = $query[Impact];
$Isolation = $query[Isolation];
}
This code is not working.help please.yes I am a newbie!
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] textarea and mysql query
Try this:
form name=wel_area method=post action=index_confirm.php3 target=box
?php
$record = mysql_fetch_array(@mysql_query(SELECT wel_area FROM
cm_index,$dbh));
echo textarea name='wel_area' value='.$record['wel_area'].' cols='25'
rows='8'/textareabrinput type='submit' name='save'
value='save'br\n;
?
/form
If not then let me know...
Thank you,
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-Original Message-
From: jas [mailto:[EMAIL PROTECTED]]
Sent: Sunday, March 17, 2002 11:54 PM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] textarea and mysql query
I need some help with a query to place the results within a text area...
here is the code and so far every time I try it out all that happens is it
displays the textbox but not the results of the query. form name=wel_area
method=post action=index_confirm.php3 target=box
?php
$record = mysql_fetch_array(@mysql_query(SELECT wel_area FROM
cm_index,$dbh)); echo textarea name='wel_area'
value='{$record['wel_area']}' cols='25' rows='8'/textareabrinput
type='submit' name='save' value='save'br\n; ?
/form
Any help would be great.
Jas
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] textarea and mysql query
What is the result of $record['wel_area']. If this is a multidimensional
array then you will need to access it differently...
Example:
echo $record[0][0].\n;
Try this is your text area and see if that comes out...
Thank you,
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-Original Message-
From: jas [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 18, 2002 12:07 AM
To: [EMAIL PROTECTED]
Subject: Re: [PHP-DB] textarea and mysql query
Yeah that didn't work either... If I put the same value (
value=\{$record['wel_area']}\ ) on a text line it works just fine however
using the same value for a textarea doesnt give me any results nor does it
give me an error message to go on, if there is a way to output the code to
the screen like a dos echo command that would help out alot. Thanks in
advance, Jas Ray Hunter [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Try this:
form name=wel_area method=post action=index_confirm.php3
target=box
?php
$record = mysql_fetch_array(@mysql_query(SELECT wel_area FROM
cm_index,$dbh)); echo textarea name='wel_area'
value='.$record['wel_area'].' cols='25'
rows='8'/textareabrinput type='submit' name='save'
value='save'br\n; ?
/form
If not then let me know...
Thank you,
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-Original Message-
From: jas [mailto:[EMAIL PROTECTED]]
Sent: Sunday, March 17, 2002 11:54 PM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] textarea and mysql query
I need some help with a query to place the results within a text
area... here is the code and so far every time I try it out all that
happens is it displays the textbox but not the results of the query.
form
name=wel_area
method=post action=index_confirm.php3 target=box
?php
$record = mysql_fetch_array(@mysql_query(SELECT wel_area FROM
cm_index,$dbh)); echo textarea name='wel_area'
value='{$record['wel_area']}' cols='25' rows='8'/textareabrinput
type='submit' name='save' value='save'br\n; ?
/form
Any help would be great.
Jas
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] optimization (another tack)
If you are using php and a database you can add more memory to the script and optimize the database. I only use postgres databases for all my large data so I can let you know how to optimize postgres... Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Aron Pilhofer [mailto:[EMAIL PROTECTED]] Sent: Monday, March 04, 2002 9:02 AM To: [EMAIL PROTECTED] Subject: [PHP-DB] optimization (another tack) Let me try this again more generally. I am trying to optimize a function in PHP that handles very large result sets, which are transferred to arrays, and that does some extremely heavy lifting in terms of calculations on those arrays. By design, it iterates through each possible combination of two result sets, and does some calculations on those results. As you can imagine, the numbers get quite large, quite fast; sets of 500 by 1000 necessitate a half-million calculations. So, short of rewriting this function in C, which I cannot do, are there any suggestions for optimizing. For example: 1) is there any advantage to caching an array as a local file? 2) the script pumps the results of the calculations into a new table.. would it be faster to dump it into a local file instead? 3) is there any advantage to executing the script as a CGI? (does that make sense? I don't know if I know the correct jargon here...) Any other tips folks have for scripts that handle a lot of calculations would be greatly appreciated. Thanks in advance. -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] optimization (another tack)
Title: Message Here is general information on postgres: http://www.ca.postgresql.org/docs/aw_pgsql_book/index.html Here is an optimization file included: This was not written by me!!! Let me know if you have questions...s Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message-From: Aron Pilhofer [mailto:[EMAIL PROTECTED]] Sent: Monday, March 04, 2002 9:10 AMTo: Hunter, RaySubject: RE: [PHP-DB] optimization (another tack) That would be great! Thanks. [Aron Pilhofer] -Original Message-From: Hunter, Ray [mailto:[EMAIL PROTECTED]]Sent: Monday, March 04, 2002 11:04 AMTo: 'Aron Pilhofer'; [EMAIL PROTECTED]Subject: RE: [PHP-DB] optimization (another tack) If you are using php and a database you can add more memory to the script and optimize the database. I only use postgres databases for all my large data so I can let you know how to optimize postgres... Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Aron Pilhofer [mailto:[EMAIL PROTECTED]] Sent: Monday, March 04, 2002 9:02 AM To: [EMAIL PROTECTED] Subject: [PHP-DB] optimization (another tack) Let me try this again more generally. I am trying to optimize a function in PHP that handles very large result sets, which are transferred to arrays, and that does some extremely heavy lifting in terms of calculations on those arrays. By design, it iterates through each possible combination of two result sets, and does some calculations on those results. As you can imagine, the numbers get quite large, quite fast; sets of 500 by 1000 necessitate a half-million calculations. So, short of rewriting this function in C, which I cannot do, are there any suggestions for optimizing. For example: 1) is there any advantage to caching an array as a local file? 2) the script pumps the results of the calculations into a new table.. would it be faster to dump it into a local file instead? 3) is there any advantage to executing the script as a CGI? (does that make sense? I don't know if I know the correct jargon here...) Any other tips folks have for scripts that handle a lot of calculations would be greatly appreciated. Thanks in advance. -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Optimizing Postgresql Ericson Smith Following Tim Perdue's excellent article on the comparison between MySQL and Postgresql, I decided to take a shot at installing and using this database. For most of our work I use MySQL and will continue to do so, because of its ease of use and unrivaled select query speed, and also because there is no point in trying to mess around with production systems that already work fine. But some new projects suffered greatly from MySQL's table locking feature when I needed to update data (which I do a lot). Here are my adventures in setting up a Postgresql database server. Our configuration for a dedicated Postgresql server was: Redhat 7.1 Dual PIII 650Mhz System 512MB RAM 18Gig SCSI drive for the postgresql data partition Downloading and Installing I downloaded and installed the 7.1.2 RPM's from http://postgres.org without any trouble. For a server installation, I only installed: postgresql-server and postgresql-7.1.2 (base). I then started the server up and running by executing: /etc/init.d/postgresql start A small sized database was ported from MySQL (three tables totaling about 5000 records). I created sufficient indexes for postgresql's optimizer to use, and modified our C application to use the postgresql C client interface for a small CGI program that would brutally query this table. This small CGI program receives thousands of queries per minute. Optimizing One of the first things I noticed after turning on the CGI program, was that although queries were returned almost as fast as from the previous MySQL based system, the load on the server was much higher -- in fact almost 90-percent! Then I started to go down into the nitty-gritty of things. I had optimized MySQL before by greatly increasing cache and buffer sizes and by throwing more ram towards the problem. The single biggest thing that you have to do before running Postgresql, is to provide enough shared buffer space. Let me repeat: provide enough buffer space! Let's say you have about 512MB of ram on a dedicated database server, then you need to turn over about 75-percent of it to this shared buffer. Postgresql does best when it can load most or -- even better -- all of a table into its shared memory space. In our case, since our database was fairly small, I decided to allocate 128MB of RAM towards the shared buffer space. The file /var/lib/pgsql/data/postgresql.conf contains settings for the database server. Postgresql
RE: [PHP-DB] PHP and big production database apps ?
You can get a complicated as you want. I am running postgres and php for our Quality assurance department that has a web based front-end portal with the postgres and mysql backend. I use the postgres database for the sensitive database (testing, cvs, test-cases, etc.) while I use mysql for the front-end portal and text information (documents). I run intense data calculations and statistics with postgres and have php create charts and graphs. I have also started writing gui apps with php-gtk for direct database access. This has worked out great. Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Pagin [mailto:[EMAIL PROTECTED]] Sent: Friday, February 22, 2002 3:21 AM To: [EMAIL PROTECTED] Subject: [PHP-DB] PHP and big production database apps ? Hi all, I am absolutly new to PHP and PostgreSQL. So far I developed production database apps for managing production in production comapny(using Clipper and DBF files). Now my boss has got idea to try using PHP and PostgreSQL to create another production apps. These apps should run localy in company, collect all infos from production (time, quantity, persons, machines, production steps, parts, material and so on). Later these infos lets us build statistics, production plans, control people, calculate prices. And my general question is: can I develop complicated database apps for production company using PHP and PostgreSQL? How complicated screens can I build.? What about designing complex printings? Are there any additionall PHP libraries for building menus, screen controls (buttons, radiobuttons, checkboxes, dropdownlists, window tabs and so on), designing printing reports, handling bar codes and handy scanners, creating charts on screen, any other? what PHP language or PostgreSQL limitation can I face? Apps I developed so far has got about 25.000 code lines and uses about 100 releted tables Thanks a lot for your replays. Wojtek -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] How do I add multiple var to a if clause ?
If you are looking for speed and efficiency in your code then Mat has
touched on it.
This example will execute the fastest...
If( $var = 3 )
{}
If you do or statements or and statements all of the if statement needs to
be evaluated. So if you have an or or and all the statements in the if
clause needs to be evaluated.
Just some technical crap for the insane...
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-Original Message-
From: matt stewart [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 21, 2002 3:47 AM
To: php List
Subject: RE: [PHP-DB] How do I add multiple var to a if clause ?
either
if (($var = 3)($var = 1)){
}
if you want it to just be somewhere between one and 3,
or
$my_array = array (1, 2, 3);
if (in_array($variable, $my_array)) {
}
if you want it to be just one of those exact values.
-Original Message-
From: Dave Carrera [mailto:[EMAIL PROTECTED]]
Sent: 21 February 2002 10:40
To: php List
Subject: [PHP-DB] How do I add multiple var to a if clause ?
Hi All
If($var == 1,2,3){
}
This is wrong so what is the right way.
I am try to find out a if var equals either 1 2 or 3 do something type thing
but cant find answers anywhere
Thanks in Advance
Dave Carrera
Php / MySql Development
Web Design
Site Marketing
http://www.davecarrera.com
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
---
Incoming mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.323 / Virus Database: 180 - Release Date: 08/02/02
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.323 / Virus Database: 180 - Release Date: 08/02/02
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] mysql connect, while and close big problem
What type of connections are you making persistent or non-persistent? Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Killer Angel Clark [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 21, 2002 10:17 AM To: [EMAIL PROTECTED] Subject: [PHP-DB] mysql connect, while and close big problem I make a connection A to get an array of result. Then use a while loop to use the array. In the while loop, I use the data to select other data by making a new connection. After printing the data, I close this new connection. After the while loop, I close the first connection too. If only have the first connection, it has no problem. But with the select in the while loop and close the new connection, it has an error on closing. Does anyone know why and how to fix it?? -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] Secure Encrypt/Decrypt Functions
You can use the mcrypt functions of php. You can look in the php manual here: http://www.php.net/manual/en/ref.mcrypt.php . You will also need to compile php with mcrypt. I use mcrypt with no problems. Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Jonathan Hilgeman [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 21, 2002 11:59 AM To: [EMAIL PROTECTED] Subject: [PHP-DB] Secure Encrypt/Decrypt Functions Does anyone know of a fairly simple, but secure technique for encrypting and decrypting text? - Jonathan -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] How to make logout from database server (ORACLE for example) when user closes its session
Do not use persistent connections to the database. Use non-persistent connections and make sure to close them. Persistent connections will linger around for a while then close. Also, check the documentation on oracle concerning persistent connections http://otn.oracle.com . Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Vlad A. Chernikhoff [mailto:[EMAIL PROTECTED]] Sent: Monday, February 18, 2002 11:10 PM To: [EMAIL PROTECTED] Subject: [PHP-DB] How to make logout from database server (ORACLE for example) when user closes its session Hi all Is it possible to track such situations when http user closes connection to HTTP server to close opened persistent connections to the database? This connections is still active all the time (if using php not as CGI but as module for Apache) and when user trying to login next time PHP uses previously opened (by OCIPLogin for example) persistent connection (the same connection resource) - but this connection may be broken from the server side if its idle time is too long. So I found only way to restart my Apache + modphp from time to time. :( Thanks, Vlad -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] Problem with file() function
If you are behind a firewall or proxy, you will not be able to connect to
www.php.net. If you are not behind a firewall or proxy and you are getting
php_hostconnect errors then you need to make sure that you can get to the
php.net other than with your browser.
You can also try using fopen() as well...
Ray Hunter
Firmware Engineer
ENTERASYS NETWORKS
-Original Message-
From: Hayan Al Mamoun [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 19, 2002 3:58 AM
To: PHPList (E-mail)
Subject: [PHP-DB] Problem with file() function
Dear sirs, Please help with the follows:
When I'm trying to execute this code:
$fcontents = file ('http://localhost/');
while (list ($line_num, $line) = each ($fcontents)) {
echo bLine $line_num:/b; . htmlspecialchars ($line) . br\n; }
it runs perfectly, but when I try to change to:
$fcontents = file ('http://www.php.net/');
while (list ($line_num, $line) = each ($fcontents)) {
echo bLine $line_num:/b; . htmlspecialchars ($line) . br\n; }
it dosn't work, Can you tell why please...
Best Regards
Hayan
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP-DB] A good tutorial
It depends on the database that you are using. One of the best databases I have used for storing images has been with oracle. You need to look up the documentation on there web site. http://otn.oracle.com. As for the other databases, I have not used images with them. On oracle I have used BLOBS and CLOBS. BLOBS are binary large objects. You need to be a member of Oracle Tech Network...Here is the url for the LOBs section: http://technet.oracle.com/doc/server.815/a68004/toc.htm Hope this helps... Ray Hunter Firmware Engineer ENTERASYS NETWORKS -Original Message- From: Jennifer Downey [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 19, 2002 9:26 AM To: [EMAIL PROTECTED] Subject: [PHP-DB] A good tutorial If anyone knows of one, would someone please point me towards a good tutorial on storing images in a database then fetching them out again. I would really appreciate it and thanks in advance! Jen Downey -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
