mysql-query

Is it possible to combine these 3 mySQL queries?

I know the $downloadfile - and I want the $user_id. By trial and error I found that this does what I want. But it's 3 separate queries and 3 while loops. I have a feeling there is a better way. And yes, I only have a very little idea about what I'm doing :) $result = pod_query("SELECT ID FROM wp_posts WHERE guid LIKE '%/$downloadfile'")...

Help with grasping (INNER?) JOIN

I'm having trouble building a query. I can do what I want in 3 different queries. SELECT id FROM table1 WHERE url LIKE '%/$downloadfile' put that in $url_id SELECT item_id FROM table2 WHERE rel_id = '$url_id'" put that in $item_id SELECT rel_id FROM table2 WHERE rel_id = '$item_id' AND field_id = '42'" put that in $user_id But from re...

PHP behaves weird, mixing up HTML markup.

Thanks for looking on this problem. I have a page that is totally valid page, and there is a PHP loop that brings in a <li> for each entry of the table. When i check this page locally it looks 100% OK, but when veiwing the page online the left side bar (which creates this markup is broken randomly mixing <div>'s and <li>'s and i have n...

Is there any free tool for profiler of MYSQL database?

Is there any free tool for profiler of MYSQL database? I want to capture the SQL statement from application. and want to tune it for performenencae. Can any one suggest? Thanks, Paresh ...

MySql select by column value. Separeta operator for columns.

Hi all, i have a mysql table like this +-----+---------+-----------+-----------------+-------+ | id | item_id | item_type | field_name | data | +-----+---------+-----------+-----------------+-------+ | 258 | 54 | page | field_interests | 1 | | 257 | 54 | page | field_interests | 0 | | 256 | 54 |...

MySQL query from subquery not working

I am trying to return a number based on the count of results from a table and to avoid having to count the results twice in the IF statement I am using a subquery. However I get a syntax error when trying to run the query, the subquery I have tested by itself runs fine. Any ideas what is wrong with the query? The syntax looks correct to...

mysql display each day in a month

during a month, display the infor each date, order by date, but this infor is empty in some day. how can i still display each day as a row? Product date ----------------- 20 2008-01-01 10 2008-01-02 20 2008-01-03 10 2008-01-05 09 2008-01-08 30 2008-01-09 result: Product date ----------------- 20 2008-01-...

MySql - Get row number on select

Can I run a select statement and get the row number if the items are sorted? I have a table like this: mysql> describe orders; +-------------+---------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------------+---------------------+------+-----+----...

Query to find the data for every month of last year from the given date using mysql?

I want data for the the last 1 year from the given date For example: I have date 2013-06-01 and I want data as follows also data I want is from three table using Group By or something else Month | Amount | Total_Data June 2013 100 5 May 2013 80 4 - 100 5 - 100 5 July 2012 ...

How to give default values for the sum, count if no data exist in mysql query which uses group by?

I am using following query which works fine for me except one problem SELECT f.period as month, sum(p.revenue * ((100-q.rate)/100)) as revenue, count(distinct q.label) as tot_stmt FROM files f, reports p, rates q,albums a WHERE f.period in ('2010-06-01','2010-05-01','2010-04-01','2010-03-01') AND f.period_closed = ...

Can MySQL Nested Select return list of results

Hi I want to write a mysql statement which will return a list of results from one table along with a comma separated list of field from another table. I think an example might better explain it Table 1 ======================== id First_Name Surname ---------------------- 1 Joe Bloggs 2 Mike Smith 3 Jane Doe Table 2...

mysql count(*) left join group by - the number of files in a folder

Hi I have the following tables CREATE TABLE `files` ( `fileid` int(11) NOT NULL AUTO_INCREMENT, `filename` varchar(255) NOT NULL, `filesize` int(11) NOT NULL, `folder` int(11) NOT NULL, PRIMARY KEY (`fileid`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; CREATE TABLE `folders` ( `directoryid` int(11) NOT NULL AUTO_INCREMENT, `d...

PHP - SQL query to get update time from table status

This is my php code (I already have a connection to the db): $result = mysql_query("SHOW TABLE STATUS FROM mydb LIKE 'mytable';"); while ($array = mysql_fetch_array($result)) { $updatetime = $array['Update_time']; } echo $updatetime; I get: Warning: mysql_fetch_array(): supplied argument is not a valid MySQL r...

MySQL IDE recommendation?

Duplicate of http://stackoverflow.com/questions/9185/what-is-the-best-mysql-client-application-for-windows#9205 http://stackoverflow.com/questions/40902/looking-for-mysql-ide Hello, I've been wondering what you guys are using to write,debug,test your SQL queries there days? The requirements are quite simple: Auto-complete Synta...

MySQL JOIN, via PHP, when there is no data in one of the tables?

How do you deal with a join statement if one of the tables you are joining does not have any data for the user in it. For example: -user_1 is listed in all tables. -user_2 is listed in table_1, table_2, and table_3 but not in table_4. The following query fails because user_2 is not in table_4. $query = "SELECT table_1.username, tabl...

Normalise this Table?

Hello all, I am creating a social bookmarking app. I am having a re-thought of the DB design in the middle of development. Should I normalise the bookmarks table and remove the tag columns that I have into a separate table. I have 10 tags per bookmark and therefore 10 columns per record (per bookmark). It seems to me that breaking the...

Is it a good idea to use MySQL and Neo4j together?

I will make an application with a lot of similar items (millions), and I would like to store them in a MySQL database, because I would like to do a lot of statistics and search on specific values for specific columns. But at the same time, I will store relations between all the items, that are related in many connected binary-tree-like ...

Help with SQL Query

With regards to the following statement: Select * From explorer.booking_record booking_record_ Inner Join explorer.client client_ On booking_record_.labelno = client_.labelno Inner Join explorer.tour_hotel tour_hotel_ On tour_hotel_.tourcode = booking_record_.tourrefcode Inner Join explorer.hotelrecord hotelrecord_ O...

Buffer Overrun using Mysql Connector c++

Hi all, I'm having a few issues executing sql statements in c++ using the connector. Any hints or ideas are welcome. NB: Mysql Connector c++ 1.05 I have these defined in the class header: sql::Driver *driver; sql::Connection *con; sql::Statement *stmt; sql::ResultSet *res; sql::PreparedStatement *prep_stmt; And the...

Deceptive MySQL Query

So I don't consider myself a novice at MySQL but this one has me stumped: I have a message board and I want to pull a list of all the most recent posts grouped by the Thread ID. Here's the table: MB_Posts -ID -Thread_ID -Created_On (timestamp) -Creator_User (user_id) -Subject -Contents -Edited (timestamp) -Reported I've tried many d...