mysql

How to display mysql rows that contain certain data?

I have a table in mysql with a row called 'newrelease'. If the item is a new release my form posts it as 'yes' if no 'no'. How would i display all items that contain the data 'yes'? $query = "SELECT * FROM movielist ORDER BY newrelease DESC LIMIT 4"; ...

security deleting a mysql row with jQuery $.post

I want to delete a row in my database and found an example on how to do this with jQuery's $.post() Now I am wondering about security though.. Can someone send a POST request to my delete-row.php script from another website? JS function deleterow(id) { // alert(typeof(id)); // number if (confirm('Are you sure want to delete?'))...

ClassNotFoundException when connecting to Mysql with JDBC

I'm getting the following error when I try to run a simple Java JDBC program at the command line: Exception in thread "main" java.lang.NoClassDefFoundError: LoadDriver/java Caused by: java.lang.ClassNotFoundException: LoadDriver.java at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged...

How do I show mysql query results for fields that contain certain data?

I have a mysql query: $query = "SELECT * FROM movielist WHERE genre = 'comedy' ORDER BY dateadded DESC"; I need to change it so that it selects from movielist where genre contains 'comedy'. (Note: that my genre field will often contain more than one genre example "comedy, action, drama". ...

Complex Query with Sphinx

I am using -- http://sphinxsearch.com/ . Its working fine for me except one problem. I need to exclude some entries where a specific field doesn't contain a word. Something that would look like this in mysql: Select * from table where yescolumn = 'query' and othercolumn not like '%keyword%' Please help. Thanks. ...

mysql querying age from dob

My MySQL database has date of birth stored in the format yyyy-mm-dd, how do I query the database - without using php code - to show me results of people born within x years of now, and/or, who are y years of age? The table is called users, the colum is called dob. I've spent a while viewing the MySQL manual but I can't work out precisel...

How to search for 3 lettered words in a column - MySQL?

I have a 'Title' column with abbreviations (Ceo, Cio,..) which I have to capitalize. What is the most efficient way of finding 3 lettered words and capitalizing them? Sample data : Title ----------------------- Vp - business, Cio, Ceo E Vp, Cfo Ceo Cio Vp Thank you so much! ...

Using memtables in sql. When is it reasonable and is it safe?

I was just reading an update from a friend's project, mentioning the use of memtables to store data temporatily and then flush to a table on disk. Up to now, I have never faced a situation where I would use a memtable, or a situation where I would think the use of a mem table would be beneficial; so I wonder, when would someone use mem t...

Cassandra/HBase or just MySQL: Potential problems doing the next thing

Say I have "user". It's the key. And I need to keep "user count". I am planning to have record with key "user" and value "0" to "9999+ ;-)" (as many as I'll have). What problems I will drive in if I use Cassandra, HBase or MySQL for that? Say, I have thousand of new updates to this "user" key, where I need to increment the value. Am I i...

Search for string within text column in MySQL

I have mysql table that has a column that stores xml as a string. I need to find all tuples where the xml column contains a given string of 6 characters. Nothing else matters--all I need to know is if this 6 character string is there or not. So it probably doesn't matter that the text is formatted as xml. Question: how can I search wi...

MySQL inconsistent results with Date() select.

What's going on here? BTW, MySQL Server version: 5.0.45-log Source distribution. mysql> select count(*) from notes where date(updated_at) > date('2010-03-25'); +----------+ | count(*) | +----------+ | 0 | +----------+ 1 row in set (0.59 sec) mysql> select count(*) from notes where message like'...

[PHP] Associate different data

I will try to be as clear as possible because I can't get anybody to help me around, I am trying to associate some data from a 'videos' table with their respective ID. Lets say, I have column ID, title, serie, season, episode. I am getting my data : <? $result = mysql_query("SELECT * FROM videos WHERE serie = '".$row['serie']."' ...

How can you access two identically-named columns in a MySQL LEFT JOIN query?

I have two tables. table_x: id INT(11) tag INT(11) table_tags: id INT(11) name VARCHAR(255) Then I use PHP to perform the following query: SELECT * FROM table_x LEFT JOIN table_tags ON table_x.tag = table_tags.id The only problem is: how do I access table_x.id and table_tags.id in the results? Here is the PHP code: $...

Mapping legacy database columns in a rails project

We are creating a rails application for an already existing database. We need to map some database tables together. Suppose we have three tables: event, event_groups and event_to_groups. There are some events, there are some groups, and each event can be assigned to one or more groups. How do I model this relation in rails? eg: Ex...

Possible apache/mysql/php wrapper?

I was tasked with writing a smallish program for data input and manipulation. My language of choice happens to be PHP. I have written out the program/site it all works fine is easily portable and everything but have one question. Is there anyway to wrap up apache/mysql/php into a bundle of one exe? I know of MoWes Portable and other opti...

Better way to do SELECT with GROUP BY

Hi i've wrote a query that works: SELECT `comments`.* FROM `comments` RIGHT JOIN (SELECT MAX( id ) AS id, core_id, topic_id FROM comments GROUP BY core_id, topic_id order by id desc) comm ON comm.id = comments.id LIMIT 10 I want know if it is possible (and how) to rewrite it to get better performance. Thanks ...

What is wrong with my PHP/MySQL code?

I am building a navigation menu which lists all my categories and subcategories. The problem is it returns only one of these and not all. I have the categories echoed inside the while loop so I'm not sure why it's only showing one result and not all: <?php $query = mysql_query("SELECT * FROM categories_parent"); while ($row = mysql_fe...

dilemma about mysql. using condition to limit load on a dbf

hi, I have a table of about 800 000 records. Its basically a log which I query often. I gave condition to query only queries that were entered last month in attempt to reduce the load on a database. My thinking is a) if the database goes only through the first month and then returns entries, its good. b) if the database goes through ...

Knowledge base web app -- need a demo mode

I was contracted to build an on-line knowledge base that searches and cross-references many thousands of replacement parts for a niche industry. My client furnishes this app to his customers on a subscription basis. It uses MySQL and PHP and it works great. I want to deploy it in "demo mode" to sell my skills. I want the user to se...

Python MySQLdb placeholders syntax

I'd like to use placeholders as seen in this example: cursor.execute (""" UPDATE animal SET name = %s WHERE name = %s """, ("snake", "turtle")) Except I'd like to have the query be its own variable as I need to insert a query into multiple databases, as in: query = """UPDATE animal SET name = %s WHERE name = %s...