Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

MySQL - update table from 2 other tables.

Posted on 2016-08-22
2
Medium Priority
?
69 Views
Last Modified: 2016-08-22
Hi,
Can anyone provide an SQL query to get the distinct `title` from the`locations` table where locations.id = staff_locations.location_id and insert into `locations_2` table?

I hope that makes sense

Thanks in advance.

 CREATE TABLE IF NOT EXISTS `staff_locations` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `staff_id` int(10) unsigned NOT NULL,
  `location_id` int(10) unsigned NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unique_ids_idx` (`staff_id`,`location_id`),
  KEY `location_id` (`location_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=6 ;



INSERT INTO `staff_locations` (`id`, `staff_id`, `location_id`) VALUES
(1, 1, 200),
(2, 1, 202),
(3, 1, 211),
(4, 2, 211),
(5, 1, 224),
(6, 2, 229);



CREATE TABLE IF NOT EXISTS `locations` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(255) DEFAULT '',
  `position` int(11) NOT NULL DEFAULT '9999',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=231 ;



INSERT INTO `locations` (`id`, `title`, `position`) VALUES
(200, '2209', 9999),
(201, '2210', 9999),
(202, '2211', 9999),
(203, '2212', 9999),
(204, '2213', 9999),
(205, '2214', 9999),
(206, '2216', 9999),
(207, '2217', 9999),
(208, '2218', 9999),
(209, '2219', 9999),
(210, '2220', 9999),
(211, '2221', 9999),
(212, '2222', 9999),
(213, '2223', 9999),
(214, '2224', 9999),
(215, '2225', 9999),
(216, '2226', 9999),
(217, '2227', 9999),
(218, '2228', 9999),
(219, '2229', 9999),
(220, '2230', 9999),
(221, '2231', 9999),
(222, '2232', 9999),
(223, '2233', 9999),
(224, '2234', 9999),
(225, '2250', 9999),
(226, '2251', 9999),
(227, '2256', 9999),
(228, '2257', 9999),
(229, '2258', 9999),
(230, '2259', 9999);



CREATE TABLE IF NOT EXISTS `locations_2` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(255) DEFAULT '',
  `position` int(11) NOT NULL DEFAULT '9999',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=6 ;



INSERT INTO `locations_2` (`id`, `title`, `position`) VALUES
(1, '2209', 9999),
(2, '2211', 9999),
(3, '2221', 9999),
(4, '2234', 9999),
(5, '2258', 9999);

Open in new window

0
Comment
Question by:sabecs
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 2000 total points
ID: 41766375
I understand you need this
insert into locations_2` (`id`, `title`, `position`)
select l.id, l.title, l.position
from locations l
where exists(select null from staff_locations sl
                where sl.location_id = l.id 
  )

Open in new window

1
 

Author Comment

by:sabecs
ID: 41766386
Thanks guy, that is perfect
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article shows the steps required to install WordPress on Azure. Web Apps, Mobile Apps, API Apps, or Functions, in Azure all these run in an App Service plan. WordPress is no exception and requires an App Service Plan and Database to install
This post looks at MongoDB and MySQL, and covers high-level MongoDB strengths, weaknesses, features, and uses from the perspective of an SQL user.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question