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POMYSQL Sub Select Not Working
 

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    <p>I am trying to run two queries in one. When I run both queries seperatley, they work and provide me with the relevant information I want. When I try to combine them I seem to be going wrong somewhere. Is there something blatantly obvious that I am doing wrong?</p> <pre><code> SELECT pd.product_id, b.product_id, basket_qty, product_name, product_price, product_image, pd.category_id, basket_id (SELECT pd.product_id, b.product_id, basket_session_id, SUM(product_price) AS subtotal FROM basket b, product pd WHERE basket_Session_id = '9htt961lpa1kqieogd5ig5ff93' AND b.product_id = pd.product_id) FROM basket b, product pd, department dep WHERE basket_session_id = '9htt961lpa1kqieogd5ig5ff93' AND b.product_id = pd.product_id AND dep.department_id = pd.category_id </code></pre> <p>Table Structure -</p> <pre><code>CREATE TABLE IF NOT EXISTS `basket` ( `basket_id` int(10) unsigned NOT NULL auto_increment, `product_id` int(10) unsigned NOT NULL, `basket_qty` int(10) unsigned NOT NULL default '1', `basket_session_id` char(32) NOT NULL default '', `basket_date` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`basket_id`), KEY `product_id` (`product_id`), KEY `basket_session_id` (`basket_session_id`) ) CREATE TABLE IF NOT EXISTS `product` ( `product_id` int(10) unsigned NOT NULL auto_increment, `category_id` int(10) unsigned NOT NULL, `department_name` varchar(100) NOT NULL, `product_name` varchar(100) NOT NULL default '', `product_description` text NOT NULL, `product_price` decimal(7,2) NOT NULL default '0.00', `product_qty` smallint(5) unsigned NOT NULL default '0', `product_size` text NOT NULL, `product_image` varchar(200) default NULL, `product_date` datetime NOT NULL default '0000-00-00 00:00:00', PRIMARY KEY (`product_id`), UNIQUE KEY `product_name` (`product_name`), KEY `category_id` (`category_id`) ) CREATE TABLE IF NOT EXISTS `department` ( `department_id` int(10) unsigned NOT NULL auto_increment, `department_parent_id` int(11) NOT NULL default '0', `name` varchar(50) NOT NULL default '', `description` varchar(200) NOT NULL default '', `image` varchar(255) NOT NULL default '', PRIMARY KEY (`department_id`), UNIQUE KEY `name` (`name`), KEY `department_parent_id` (`department_parent_id`) ) </code></pre> <p>I am trying to pull product information based on a "basket" session for an ecommerce application. As a basket can contain more than one product I want to return the SUM of total value from all products.</p>
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    1. This table or related slice is empty.
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    1. USLightness Races in Orbit
    1. USRory Standley
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. COA semicolon is missing after first basket_id?
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      1. USdani herrera
    2. COThis simply is not valid Syntax. Giving us an idea wht you want to select from what table structure will help us find a solution for you
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      1. USEugen Rieck
    3. COIT appears you're trying to get a subtotal for the results one way to achieve this is to use [with rollup](http://forums.mysql.com/read.php?12,106959,106959), another way would be to use variables to keep a [running total](http://stackoverflow.com/questions/664700/calculate-a-running-total-in-mysql), and a final way would be to use a correlated subquery
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      1. USxQbert
 

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