Re: html in a text field - good practice?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Wednesday, Aug 18, 2004, at 13:59 US/Eastern, Steve Edberg wrote: At 08:37 AM 8/18/04, leegold wrote: Question I have wondered about: Is it a good practice to put html in a text field, then (eg. via php) when the marked-up text renders in a user's browser it's good looking html. If not, then I'd just sandwitch field content in a p/p when it's rendered. Though, seems like it would mess-up fulltext searching in a marked-up text field(?). Thanks. Lee G. I'd say that in general, it's best to avoid storing markup with text, because (1) as you say, it could mess up fulltext search statistics, and (2) it makes it more complex to repurpose that data - eg; export it to PDF instead of HTML. It's best to keep rendering separate from content. Amen. I've recently had good luck using the Markdown text format; for a description of the format, see http://daringfireball.net/projects/markdown/, and http://www.michelf.com/projects/php-markdown/ for PHP functions to render Markdown-formatted text into valid XHTML. pjm -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.3 (Darwin) iD8DBQFBJLApnRVGoRROKxIRAuzpAJ9DiG0xqD86boVViltNWNn0ORhHwACeMLoQ I7vJrvYmO7g6Ugf3QCx8eT4= =DIfU -END PGP SIGNATURE- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Flowing Text Into Multiple Columns
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sunday, Jun 27, 2004, at 12:31 US/Eastern, David Blomstrom wrote: Suppose I want to display an entire field, but not in one long column. Instead, I want to flow it evenly into several columns. [snip] I haven't yet learned of a way to do this with PHP, so I wondered if there's some sort of trick you can use with MySQL to flow text into multiple columns. Not with MySQL. I've done it with PHP; I'll send that off-list. pjm -BEGIN PGP SIGNATURE- Version: GnuPG v1.2.3 (Darwin) iD8DBQFA4BWcnRVGoRROKxIRAtzrAJ41Y1qUb40nvJBJQjcYD6/A2ryhtgCfS5Gr szMV9uhfWN+KfLRBRByepic= =c6Xw -END PGP SIGNATURE- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: multiple values in one column
On Thursday, Nov 13, 2003, at 02:55 US/Eastern, John Berman wrote: Can I have multiple values in one column and then index the column, I have used different delimiters but the index only seems find the whole contents of the column no matter what I separate the data with It seems like you'd be better off with a modified database design. If you need multiple values in a column, you might be better off making an intersection table, and indexing that. So instead of having multiple values in column 1 of table A, you have multiple rows in table B, each with one value, referencing a single row in table A. (I hope I've explained that clearly; if I've misunderstood, or someone has a better way of phrasing it, feel free to jump in.) pjm PGP.sig Description: This is a digitally signed message part
Re: multiple values in one column
On Thursday, Nov 13, 2003, at 12:03 US/Eastern, John Berman wrote: I have a single table with 120 fields (its full of genealogical data) All the records apart from marriages have an entry in the surname field [snip] Now marriages don't have an entry in surname but they do in groomsurname and bridesurname, I figured if I copied the groom surname and bridesurname to the main surname index that would do the trick ? I did index groomsurname and bridesurname and then use a statement like sql = SELECT COUNT(*) AS res, uniqueref FROM global WHERE surname = ' globsurname ' or groomsurname = ' globsurname ' or bridesurname = ' globsurname 'group by uniqueref This gave me 2 problems, It really slowed down the search and if a result was found I could not detrmine which field it was found in so drilling down was a problem. Wow. I think I had suspected this might be the problem. I don't think there's any way of solving the two problems of really slowing down the search and not knowing which column matched without fundamentally changing your table structure. It sounds like you've got the whole database in one table, which isn't really making use of the strengths of the DBMS. You'd do much better breaking this data out into multiple related tables. You'd still have to do multiple queries while looking for surnames, but the collected queries on the (much smaller) tables would be still be faster than the single query I've quoted above. Without knowing what columns you have in your current table, I can't suggest how you'd break them down, but a good rule of thumb is that each table should contain only one kind of entity. So you probably shouldn't have marriages and individual persons in one table. (Far better to have a table of people, then a table of marriages which describes the relationships? Then you don't have bridesurname and groomsurname fields, just one surname field. You can also describe multiple marriages for a single person with a minimum of table space.) This isn't the place (nor am I the right person, probably) to get into an extended discussion of database normalization, but if you search that phrase on the web you'll find quite a bit. Here's one place to start: http://databases.about.com/ (look under design). Many MySQL books will discuss normalization as well (it's in chapter 7 of the O'Reilly book I have here.) pjm PGP.sig Description: This is a digitally signed message part
Re: Command not found
On Friday, Sep 5, 2003, at 00:51 US/Eastern, [EMAIL PROTECTED] wrote: I installed the MySQL 4.0 on my Linxus machine (red hat 7.3). The installation shows no problem, and I can see that the 'mysqld' server is actually runing through a command like ./bin/mysqladmin version. However, it just does not allow me to switch to the mysql client program from my login shell. Whenever I try to do so, it also says that bash: mysql: command not found. I don't know how to deal with it. Could some MySQL experts please kindly help me with this? It's not a MySQL issue, it's a Linux issue. If your MySQL binaries are installed in a directory like /usr/local/mysql/bin/, they're not in one of the directories your shell (probably bash) looks in for commands. (To see which directories are being searched, type echo $PATH at the shell prompt.) You'll need to edit the .bashrc file in your home directory to add the /usr/local/mysql/bin directory to the search path if you want to avoid typing the full path. Another alternative is to place links to the binaries in one of the directories already in the path, like /usr/bin/. pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
SOLVED Re: MySQL 4.0.14 stops responding to PHP 4.3.2
On Thursday, Sep 4, 2003, at 12:47 US/Eastern, Parker Morse wrote: No, it turns out this is not the key. With mysql_connect() I'm actually failing MORE often than with mysql_pconnect - so far it hasn't stayed up 15 minutes without error. (Fortunately, I have a cron job checking on it and restarting.) However, this did put me on to the problem. I was tripping resource limits. When I was first setting up the server and getting the individual sites/users working in the mysql.user table, I saw the max_connections column set to 0 and thought that was a problem; I didn't realize that 0 meant no limit. So I set a limit. I was running up on the connection limits, which meant mysqld was refusing further connections until my server restart reset the counts to 0. With mysql_connect I had more connections, and thus reached the limit faster. Now I have reset the max_connections numbers to 0, and I haven't had a failure in twenty hours, so I think I can call this problem solved. Thanks for your help. In the course of sorting it out, I also learned a good deal about debugging mysql errors gracefully in PHP. pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Command not found
On Friday, Sep 5, 2003, at 10:24 US/Eastern, Parker Morse wrote: You'll need to edit the .bashrc file in your home directory to add the /usr/local/mysql/bin directory to the search path if you want to avoid typing the full path. Another alternative is to place links to the binaries in one of the directories already in the path, like /usr/bin/. I should correct myself - the file to look at is .bash_profile, not .bashrc, at least in RH 9.0. Or .tcsh_profile (or .tcshrc) if you use tcsh - I don't, so I'm not certain which file it would be in. And, as Mike suggests, check to make sure the MySQL client is there at /usr/local/mysql/bin/mysql. It might be that simple. pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: SOLVED Re: MySQL 4.0.14 stops responding to PHP 4.3.2
On Friday, Sep 5, 2003, at 13:41 US/Eastern, Thierno Cissé wrote: Finally you seem to say that you 've setting max_connections with a limit. Can you tell how many 100 or 200 ? No. It turns out that setting max_connections to 0 is the same as setting no limit at all. This was my initial misunderstanding. The server is not currently in danger of overload, and I am sysadmin, DBA and primary web developer (small company), so I am free to work with no restrictions until I feel they're necessary. Also you say : Here's the configuration: MySQL Ver 12.21 Distrib 4.0.14, for pc-linux (i686) PHP 4.3.2 Red Hat 9.0 Have you enable QUERY CACHE feature with MySQL 4.0.14 ? Not that I'm aware of. As I said in my first post, I'm familiar with MySQL from the web developer's standpoint, but this is my first experience running and tuning the server. I'm sure there's a lot of things I could be doing to configure it better, but it's not clear to me yet what they are. It's pretty much a default configuration now, with my_large.cnf with a few tweaks as the my.cnf file. pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Command not found
On Friday, Sep 5, 2003, at 15:02 US/Eastern, hongbin liu wrote: Thank you so much. I changed the profile according to what you guys told me, and add /usr/local/mysql/bin to the profile. Guess what? It works great! But I am not sure if I did the right thing: my computer uses bash, I could not find either .bash_profile. There is only one file named profile under the /etc/ directory. So I just put the /usr/local/mysql/bin into the directory, and it works! Adding that to the /etc/profile file will add it to the $PATH for all users, while adding it to a .profile or .bash_profile file will add it only for the particular user. Just so you have your permissions set correctly on the mysql binaries. Glad it works... pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: MySQL 4.0.14 stops responding to PHP 4.3.2
On Thursday, Sep 4, 2003, at 01:27 US/Eastern, Antony Dovgal wrote: Please, read http://www.php.net/manual/en/features.persistent-connections.php I recommend you not to use *_pconnect. There are some big problems with persistent connections and these problems are 'by design'. Use SQLrelay if you need real connection pooling. In your case MySQL probably says 'too many connections' and you can catch this error message if you'll turn on error_log in php.ini. That sounds like a plausible explanation - by restarting mysqld I'd be closing all the open connections, admittedly the hard way. I've changed the mysql_pconnect() calls to mysql_connect(), and I'm reading up in the manual. I don't understand all of it yet, which should probably tell me to stick to mysql_connect! Meanwhile, I'll see if I have any more failures using mysql_connect. Thanks, pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: MySQL 4.0.14 stops responding to PHP 4.3.2
On Thursday, Sep 4, 2003, at 10:03 US/Eastern, Parker Morse wrote: On Thursday, Sep 4, 2003, at 01:27 US/Eastern, Antony Dovgal wrote: Please, read http://www.php.net/manual/en/features.persistent-connections.php I recommend you not to use *_pconnect. There are some big problems with persistent connections and these problems are 'by design'. Use SQLrelay if you need real connection pooling. In your case MySQL probably says 'too many connections' and you can catch this error message if you'll turn on error_log in php.ini. That sounds like a plausible explanation - by restarting mysqld I'd be closing all the open connections, admittedly the hard way. I've changed the mysql_pconnect() calls to mysql_connect(), and I'm reading up in the manual. I don't understand all of it yet, which should probably tell me to stick to mysql_connect! Meanwhile, I'll see if I have any more failures using mysql_connect. No, it turns out this is not the key. With mysql_connect() I'm actually failing MORE often than with mysql_pconnect - so far it hasn't stayed up 15 minutes without error. (Fortunately, I have a cron job checking on it and restarting.) I have error_log turned on in php.ini, but there's nothing at the specified path. Likewise, the mysql_error log is only showing the restarts. pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
MySQL 4.0.14 stops responding to PHP 4.3.2
I've been using MySQL and PHP for a while in a shared hosting environment, but recently we shifted to a co-located server, so I am new to administering mysqld. Periodically our PHP sites will fail to connect using mysql_pconnect(). We currently have three sites on the colo box (two more are waiting on shared hosting until I can solve this problem) and they all fail at once. mysqld is still running, though. If I shut down mysqld and restart, they are able to connect again. This makes me think the problem is with how I have MySQL configured. However, nothing useful is being logged anywhere in the /var/log heirarchy, so I can't figure out what's going wrong. Here's the configuration: MySQL Ver 12.21 Distrib 4.0.14, for pc-linux (i686) PHP 4.3.2 Red Hat 9.0 I am starting MySQLd with mysqld_safe --user=mysql --bind-address=127.0.0.1. I don't have a my.conf file, so I seem to be running with defaults. It's hard to get a picture of what's happening right before these lockups, but when I look after a lockup, load on the server doesn't appear to be an issue. (I haven't seen load average go over .50 except during the initial fcheck run, and most of the time it's 0.00.) I have some mysql status snapshots from before and after a lockup. I've also been running mytop thanks to a suggestion on this list yesterday. If anyone thinks that information would be helpful, I can supply them. Thanks for anything that might give me a toehold on this problem. pjm -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
