How To Optimize Mysql Like '%keyword%'

It seems index does not work for like '%keyword%'. I have a search query on a very large table:

SELECT id FROM table WHERE name like '%user_keyword%' AND number1 =1 AND number2= 0 AND number3=3 ORDER BY somthing.

The problem is the table is very large and I can't image a search without index. How to preform/optimize this query?



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Match Both A Htmlentified Keyword And Non-htmlentified Keyword At The Same Time In A Fulltext MySQL Search

I've been learned to keep my data in MySQL as raw as possible. Here's an example of how I store content in my MySQL database:

title (VARCHAR, 255) =>
content (TEXT) => <p>A paragraph about r&eacute;f&eacute;rences...</p>

When I output it to a page, I use htmlentities() on title, but ofcourse not on content. I feel this is the correct way of storing it, since title stores only text and content stores HTML.However, I now see a limitation to this: when I'm do a fulltext search to match a specific keyword (such as , I need to search both for AND r&eacute;f&eacute;rences in order to retrieve all results.

[code]....

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This is for an upcoming project. I have two tables - first one keeps tracks of photos, and the second one keeps track of the photo's rank

Photos:
+-------+-----------+------------------+
| id | photo | current_rank |
[code]...

That means some extra code in PHP to split the rank/time (and sorting), but that looks OK to me. Is this a correct way to optimize the table for performance?

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I want to check for the username in the users table. If it's found, then I want to get the id. Otherwise, I want to insert the username as a new record, then get the id.
Here's my code:

<?PHP
$sql = "SELECT id FROM users where username = '$username'";
$query = mysql_query($sql) or die(mysql_error());
$result = mysql_num_rows($query);
if($result){
code....

How can I optimize or combine these MySQL queries?

Can I select and insert in the same query?

and would it be better and faster?

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do you know some trick about how can I optimize more a full match search?

The code that I'm trying to optimize:

$do = $this->select()
->where('MATCH(`name`,`ort`) AGAINST( ? IN BOOLEAN MODE)', $theString)
->order('premium DESC');

The search should search for some companies...and let's say that in the field name I have: Google and in the ort field I have new york. I want to do a query like: google center in new york and to give me as a result all the google centers from new york only!

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What should I do?

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Running an EXPLAIN on some of my query tests have resulted in slow ALL joins even with indexes. How do I make a MYSQL query with the following information more efficient?

Tables

counter: id (pk), timestamp, user_id (fk)
user: id (PK), username, website_id (fk)
website: id (pk), sitename
SELECT t2.username, t3.sitename, count(*) as views FROM counter t1
LEFT JOIN user t2 ON t2.id = t1.user_id
LEFT JOIN website t3 ON t3.id = t2.website_id
WHERE t1.id <> ""
GROUP BY t1.id
ORDER BY t1.id DESC

The result in an html table:

username, sitename, counter_views

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(SELECT title,content,date FROM article1 WHERE (cat='novel' AND MATCH (title,content) AGAINST ('+Mary +Barnard' IN BOOLEAN MODE))OR (cat='novel' AND MATCH (title,content) AGAINST ('+Patricia +Beer' IN BOOLEAN MODE))

[code]...

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Do A Search By Keyword, And Show The Results Highlighting The Keyword.

I made a search engine, and now I'd like to do a search by keyword, and show the results highlighting the keyword. I have this: PHP Code:

$string = "This is a test, but this will be...";
$keyword = "this";
$new_string = eregi_replace($keyword, "<strong>$keyword</strong>", $string );

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Keyword Density Calculation On A Keyword Phrase?

When attempting to calculate the keyword density of a single keyword in a string of content, the formula is pretty straightforward: kwd = (keyword count / total word count ) * 100However, what should the formula be when we are looking for keyword density of a keyword phrase?For example, how would you calculate the keyword density of the phrase "blue widgets" in the following string?

$myContent = "Blue widgets in a field
of widgets blue makes for lots of widgets, true. But
if a widget is blue, is it still a
"blue widget" or just a lone widget in a sea
of blue?";
[code]....

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What should I use, to search for a keyword with mysql ? I have a word and in the query I have

wordless
something word something
someword some
else
[code].....

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Misspelled Keyword Matching In Mysql

I have few keyword lists already in mysql table. for example keywords are like indian army, indian boys, USA people and something like that.

So if someone searches using my search and use some misspelled keyword like he enters "indan boys" so i want that "Indian Boys" option should be selected from my sql database.

Is there anyway by which i can display nearest correct keyword from database?

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Multiple Keyword Search In Mysql?

Here's what I'm trying to do: I have a database (directors) containing 8 columns. Each column contains sentences or keywords.I have built a search form (multiple words separated by a space) and wrote a mysql statement that cycles through:1. the array of keywords2. the array of columnsI'd like the results to be based on ALL of the search words but for some reason, my statement shows results that include any of the keywords.What is it that I'm doing wrong?this is the coding I have used so far without success:

if ($searching2 =="yes")
{
echo "<h2>Results</h2><p>";
if ($SearchWords == "")
[code].....

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OR Keyword Be Use For Same Field In A Mysql Table?

I'm trying to create a search form where members of a site can search other members whose user information is stored in a mysql database. One of the search parameters is gender which searches for records from a column in the database called gender where members can either have the value "man" or "woman". The user can choose between 3 options from a pull down menu named gender (man, woman, both). Then I'm thinking about using a select query to search the database upon submission of the form, which goes something like this:

[syntax=php]
$sql= SELECT* FROM members WHERE gender ='{$_POST['gender']}' ;
[/syntax]
[code]....

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Mysql Search Multiple Tables Using A Keyword?

I have three tables in my database which are:

messages
topics
comments

Each of these tables has two fields called 'content' and 'title'. I want to be able to use 'Like' in my sql statement to look at 'messages.content', 'messages.title', 'topics.content', 'topics.title', 'comments.content' and 'comments.title' using a keyword.

So far, my query is able to find results from only one table:

mysql_query("SELECT * FROM messages
WHERE content LIKE '%" . $keyword . "%'
OR title LIKE '%" . $keyword ."%'");

I am also wondering, once I get the results from multiple tables, how can I tell what result is from what table?

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Search More Than 1 Field In Mysql Database For A Keyword?

Does anyone know how i can make a query for a keyword (say apple) in different field?Example would be...I have 4 fields in my databasefield 1, field2 field 3, field 4each field has different keywords, apple, banana, orange, strawberryWhat i want to do is make a query with php were it searches for say apple, but it searches all 4 fields to see in which field apple is atDoes that make sense?Could i do the following...

Code: [Select]<?php
$sql = "SELECT * FROM table WHERE field2='1' || field2='1'";
?>

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MySQL: CONCAT_WS(' ', Name_first, Name_middle, Name_last) Like '%keyword%'?

I'm setting up a keyword search across multiple fields: name_first, name_middle, name_last but I'm not getting the results I'd like. Here's the query:

"SELECT accounts_users.user_ID, users.name_first, users.name_middle, users.name_last, users.company
FROM accounts_users, users
WHERE accounts_users.account_ID = '$account_ID' AND accounts_users.user_ID = users.id AND CONCAT_WS(' ', users.name_first, users.name_middle, users.name_last) LIKE '$user_keyword%'
ORDER BY users.name_first ASC"

So, if I've got three names in the DB:Aaron J Ban

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File Only Search 'Begin With Keyword' - Make It Search 'Contain Keyword'?

This search.php file only search 'Begin with keyword' only, how to make it search 'Contain keyword'

Quote: for example there already a name in database, lets say James

1. right now if user search for 'Begin with keyword' like Ja, or Jam, it will showing it (James, and other name begin with that keyword)

2. but not if search for 'End with keyword' or 'Contain keyword', like mes, or ames, or ame (it will not showing James, and other name with that keyword in the middle or in the end)

i need to make it like no.2 above, can search for 'Contain keyword', not search for 'Begin with keyword' only.

$sq = "select * from names where $gn $ori and (name like '$l%' OR meaning like '$l%') order by name";
$sql = "Select * from names where $gn $ori and (name like '$l%' OR meaning like '$l%')

order by name limit $limitvalue,$limit"; * = are the keyword that typed by user names = the database table contain name list meaning = the database table contain name meaning list

[Code].....

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My Program is about parsing website through their url, My program is working properly but everytime it enters URL with so many sub URL (i mean thousand) my program seem to stop responding. Can you suggest something to this problem. somebody told me that i use the sleep() fucntion to not force my script to run successively, to give a pause to my program. Any thing more you can suggest? i'm not after the speed of execution but what im after is that he finish his job no matter how much time it takes....

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Sql Optimize Help Needed

SELECT * FROM post WHERE forumid=1 ORDER BY ctime LIMIT x,10

ctime=creation time
both forumid and ctime is index separately
it take too much time when x is so large.
how can i optimize this query?

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I want to know, how to optimize a forum made of PHP. What about URL re-writing. I have read that Long Dynamic URL are not supported by Search Engines and these pages are hard to crawl. I have read about converting Dynamic URL to static one (the one which SEarch Engines prefers)..but i dont know how to do that?

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Is that a bad way to do things? If so, how is a better way to grab that information. I think it is a bad way to do it because half the time those second query's don't even run.

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.....
each surfer will add new row to script and delete all IP's that are older than 24h, but trouble is: each surfer open file , read all content and rewrite new file i had idea to settle it by using only some ammount of IP's , but i can't do so, because i need to list these IP's for 24hours...

i'm sure there is any other way how to save all IP's for 24h without reading them'all and rewrite existing file with nwe one. i thought some function that could cut off e.g. last few rows and add new one.. or so...

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I need a program that will run on my unix server that I can call by command line and it will Resize the picture. I need to 2 copies. One that is max 350 x 350 and a thumbnail that is 100 x 100. Keeping tha aspect ratio correct and Optimize the graphic for fast loading. Does anyone know of a program like this?

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What does "Optimize Table" actually do?

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