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• How to store MySQL query results in another Table?

  - by Taz

  How to store results from following query into another table. Considering there is an appropriate table already created. SELECT labels.label,shortabstracts.ShortAbstract,images.LinkToImage,types.Type FROM ner.images,ner.labels,ner.shortabstracts,ner.types WHERE labels.Resource=images.Resource AND labels.Resource=shortabstracts.Resource AND labels.Resource=types.Resource;

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• Faster way to know the tolal number of rows in Mysql Database?

  - by Starx

  If I need to know the total number of rows in a table of database I do something like $query = "SELECT * FROM tablename WHERE link='1';"; $result = mysql_query($query); $rows = mysql_fetch_array($result); $count = count($rows); So you see the total number of data is recovered scanning through entire database Is there a better way

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• MySQL: How can fetch SUM() of all fields in one Query?

  - by takpar

  Hi, I just want somthing like this: select SUM(*) from `mytable` group by `year` any suggestion? (I am using Zend Framework; if you have a suggestion using ZF rather than pure query would be great!) Update: I have a mass of columns in table and i do not want to write their name down one by one. No Idea??

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• MySQL: How can fetch SUM() of all fields in ne Query?

  - by takpar

  Hi, I just want somthing like this: select SUM(*) from `mytable` group by `year` any suggestion? (I am using Zend Framework; if you have a suggestion using ZF rather than pure query would be great!)

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• How do I use a MySQL subquery to count the number of rows in a foreign table?

  - by James Skidmore

  I have two tables, users and reports. Each user has no, one, or multiple reports associated with it, and the reports table has a user_id field. I have the following query, and I need to add to each row a count of how many reports the user has: SELECT * FROM users LIMIT 1, 10 Do I need to use a subquery, and if so, how can I use it efficently? The reports table has thousands and thousands of rows.

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• Is there a command to test an SQL query without executing it? ( MySQL or ANSI SQL )

  - by Petruza

  Is there anything like this: TEST DELETE FROM user WHERE somekey = 45; That can return any errors, for example that somekey doesn't exist, or some constraint violation or anything, and reporting how many rows would be affected, but not executing the query? I know you can easily turn any query in a select query that has no write or delete effect in any row, but that can lead to errors and it's not very practical if you want to test and debug many queries.

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• mysql : possible to put IF statment in LEFT JOIN ?

  - by Haroldo

  Ok so i want to get an artists info from the db, but i want to know if they have any forthcoming events. To do this i need to traverse 2 tables, where events_artists is a 2 col link table... (this doesnt work but is what id like to do) SELECT art.*, events.event_id FROM art LEFT JOIN events_artists ON art.art_id = events_artists.art_id LEFT JOIN events ON events_artists.event_id = events.event_id IF ( {criteria} ) what should i be doing here to get this to work?!!

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• Can I lock tables in an IF statement in MySQL?

  - by MalcomTucker

  This is throwing a syntax error - --from body of a stored proc IF (name = in_name) SET out_id = temp; ELSE LOCK TABLE People WRITE; INSERT INTO People (Name) VALUES (in_name); UNLOCK TABLE; SELECT LAST_INSERT_ID() INTO out_id END IF do I have to lock any tables I need at the start of the SP?

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• how to pass int values in mysql query string?

  - by pamela

  here my code- $sqlpin = "SELECT pinId FROM tblpin WHERE pinId = '$pin_no', status = 0 "; status is int type. it is showing parse error.

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• Making a function for selecting from MySQL, how is mine?

  - by Doug

  This is my first time. I will appreciate any thoughts, tips, and what not. How can I improve this? Ultimately, I don't want so many selects in my script. function mysqlSelectCodes($table, $where, $order, $limit) { $sql = "SELECT * FROM $table WHERE $where ORDER BY $order LIMIT $limit" or die(mysql_error()); }

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• Mysql query to get distict hotel id with minimum price and star?

  - by user1325929

  Current table hotel_id | price | star 1100 | 1999 | 3 1100 | 1565 | 3 1100 | 2000 | 3 1101 | 2010 | 4 1101 | 2050 | 4 1102 | 5599 | 5 1102 | 6599 | 5 Required result: distinct hotels with minimum price and it's star hotel_id | price | star 1100 | 1565 | 3 1101 | 2010 | 4 1102 | 5599 | 5 I wrote query as SELECT DISTINCT hotel_id, min(price),star FROM MyTable. It is giving only 1 row instead of 3

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• In mysql or postgres, is there a limit to the size of an IN (1,2,n) statement?

  - by Kyle

  I've got quite a few SQL statements like such: SELECT foo FROM things WHERE user_id IN (1,2,3..n) Is there a known limit to the number of elements that will safely fit in an IN clause like that?

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• How to translate this 2 queries from Mysql to Postgresql? :

  - by xRobot

  How can I translate this 2 queries in postgresql ? : CREATE TABLE `example` ( `id` int(10) unsigned NOT NULL auto_increment, `from` varchar(255) NOT NULL default '0', `message` text NOT NULL, `lastactivity` timestamp NULL default '0000-00-00 00:00:00', `read` int(10) unsigned NOT NULL, PRIMARY KEY (`id`), KEY `from` (`from`) ) DEFAULT CHARSET=utf8; Query: SELECT * FROM table_1 LEFT OUTER JOIN table_2 ON ( table_1.id = table_2.id ) WHERE (table_1.lastactivity > NOW()-100);

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• MySQL only returning one result. Im Baffled.

  - by Tapha

  Here is te code: <?php //Starting session session_start(); //Includes mass includes containing all the files needed to execute the full script //Also shows homepage elements without customs require_once ('includes/mass.php'); $username = $_SESSION['username']; if (isset($username)) { //Query database for the users networths $sq_l = "SELECT * FROM user"; $sql_query_worth = mysql_query($sq_l); while ($row = mysql_fetch_assoc($sql_query_worth)) { $dbusername = $row['username']; } echo $dbusername; } ?>

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• MySQL - Combine two fields to create a unix timestamp?

  - by Dan

  Hi, I'm trying to retrieve a UNIX timestamp from a query by combining a date and a time field in the table, however it keeps returning as zero. SELECT *, UNIX_TIMESTAMP(startdate starttime) AS start, UNIX_TIMESTAMP(enddate endtime) AS end FROM mytable; Can anyone help me out? Thanks.

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• Getting the first row of the mysql resource string?

  - by mrNepal

  Here is my problem. I need more than one row from the database, and i need the first row for certain task and then go through all the list again to create a record set. $query = "SELECT * FROM mytable"; $result = mysql_query($query); $firstrow = //extract first row from database //add display some field from it while($row = mysql_fetch_assoc($result)) { //display all of them } Now, how to extract just the first row?

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• mysql queries - performance loss by putting numbers in quotes?

  - by Haroldo

  If a variable will always be a number, is there a performace loss by putting it in inverted commas? for example "SELECT prod.product_name FROM prod WHERE prod.id = '$id'";

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• Is there something in MySQL like IN but which uses AND instead of OR?

  - by Skatox

  I need a SQL statement to retrieve records where it key (or any column) is in a associate table, for example: documentId termId 4 1 4 2 3 3 5 1 This: SELECT documentId FROM table WHERE termId IN (1,2,3) ...will retrieve any documentid value where the termid value is 1 or 2 or 3. Is there something like this but return documentid values where the termid values are 1 and 2 and 3? Like an IN but with AND.

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• 100,000 complex structures that are accessed frequently by 100,000 users

  - by Saad

  If you are required to store 100,000 complex structures that are accessed frequently by 100,000 users, which of the following solutions would you use and why? Memcached, In-code python objects, Redis, or a relational database (MySQL). With the little knowledge that I have I think that memcached and In-code python object will not store permanent persistent data. so they don't qualify as the right answer for such a problem. And for complex data structures its best to use Redis. Please correct me if I am wrong.

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• Xampp : http://localhost/xampp/splash.php :english : nothing happens

  - by Oussama Abdallah

  After I start Xampp on my Ubuntu 12.04 I go to the localhost and I come to the site, where all languages are listed .... when I click any of these languages nothing happens. Follow steps are already done: I started Xampp with: sudo /opt/lamp/lamp start after doing so, I get in the console, that everything is running: Starting XAMPP for Linux ... XAMPP: Starting Apache...ok. XAMPP: Starting MySQL... ok. XAMPP: Starting ProFTPD...ok. Can you please help me solve this problem?

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• choosing Database and Its Design for Rails

  - by Gaurav Shah

  I am having a difficulty in deciding the database & its structure. Let us say the problem is like this. For my product I have various customers( each is an educational institute) Each customer have their own sub-clients ( Institution have students) Each student record will have some basic information like "name" & "Number" . There are also additional information that a customer(institution) might want to ask sub-client(student) like "email" or "semester" I have come up with two solutions : 1. Mysql _insititution__ id-|- Description| __Student__ id-|-instituition_id-|-Name-|-Number| __student_additional_details__ student_id -|- field_name -|- Value Student_additional_details will have multiple records for each student depending upon number of questions asked from institution. 2.MongoDb _insititution___ id-|- Description| _Student__ id-|-instituition_id-|-Name-|-Number|-otherfield1 -|- otherfield2 with mongo the structure itself can be dynamic so student table seems really good in mongo . But the problem comes when I have to relate student with institution . So which one is a better design ? Or some other idea ?

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• Update pizza orders list [on hold]

  - by tirengarfio

  I have to create a website to order pizzas using PHP, MySQL, javascript, etc. I have to create also an android app for the owner of the restaurant, so when someone order a pizza, the android app show the new order on the list of the orders. Hwo to do this? Should I use push notifications? If yes, what happens when the connection su**s and the device is not connected at the moment of the push? Or should I use pull requests from the android device like every 10 seconds?

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• How to Sync Your Media Across Your Entire House with XBMC

  - by Jason Fitzpatrick

  XBMC is an awesome media center solution but when you’re using it all over your house your library updates and watched-media lists get out of sync. Read on as we show how to keep all your media centers on the same page. Note: This how-to guide was originally published in September of 2011 and detailed how to set up whole-house media syncing for XBMC “Dharma” 10.0. We’ve updated the guide for the newer, more user-friendly MySQL integration included in XBMC “Eden” 11.0.  How to Sync Your Media Across Your Entire House with XBMC How to Own Your Own Website (Even If You Can’t Build One) Pt 2 How to Own Your Own Website (Even If You Can’t Build One) Pt 1

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• Looking for a FormBuilder that gives me all images and sourcecode to my form

  - by Tracy Anne

  Wow, I started my search this morning and didn't think it would be so difficult to find. I'm just tired of spending hours putting together simple html forms in dreamweaver. I'm an enthusiast web developer mostly focused on php and mysql. I hate CSS and HTML and I'm looking for a simple program that will put a form together for me where I can then completely embed the form into my site. I'll do all of the programming to attach it to my database I just need the form and images. I've looked into jotform, wufoo, 123forms etc but it seems like they all want to keep my form on their servers in one way or another. It looked like jotform had a developers version but $450 bucks is a little steep for a part timer like me. Is there no simple software out there that will throw a nice stylized form together for me?

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• get mysql_real_escape is giving me errors when I try and add security to my website

  - by Mike

  I tried doing this: @ $db = new myConnectDB(); $beerName = mysql_real_escape_string($beerName); $beerID = mysql_real_escape_string($beerID); $brewery = mysql_real_escape_string($brewery); $style = mysql_real_escape_string($style); $userID = mysql_real_escape_string($userID); $abv = mysql_real_escape_string($abv); $ibu = mysql_real_escape_string($ibu); $breweryID = mysql_real_escape_string($breweryID); $icon = mysql_real_escape_string($icon); I get this error: Warning: mysql_real_escape_string() [function.mysql-real-escape-string]: Access denied for user

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